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Home > Biochemical Engineering > Polypeptide > Diethylstilbestrol for Sale > Synthetic 19AA Somatropi freeze-dried powder, exclusive biochemical raw material for laboratory research experiments.
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Synthetic 19AA Somatropi freeze-dried powder, exclusive biochemical raw material for laboratory research experiments. buy - image1
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Synthetic 19AA Somatropi freeze-dried powder, exclusive biochemical raw material for laboratory research experiments. buy - image6

Synthetic 19AA Somatropi freeze-dried powder, exclusive biochemical raw material for laboratory research experiments.

TDS 5 Inquiries

Unit Price:

$35-45/BOU FOB

Get Latest Price
CAS No.:

56-53-1

Grade:

Pharmaceutical Grade

Content:

99%

Port:

GUANGZHOU

Brand:

band

Packaging:

10 pieces per box

Price valid (until):

2027-09-01

Company Type:
Trader
Location:
Hongkong, China
Qualification:
Main Products:

Tirzepatide,Retatrutide,Semaglutide,GHK-Cu

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Product Introduction
    Somatropi 19AA is an artificially synthesized polypeptide compound produced via standard solid-phase peptide synthesis technology, presented as white lyophilized crystalline powder under regular room temperature environment.

    This raw material is manufactured following unified standardized production specifications for each batch, derived from synthetic amino acid sequences. The product is exclusively prepared for diversified exploratory laboratory researches within the biochemical field. Every finished batch undergoes standardized lab testing to maintain consistent physical and chemical features across different production lots.
    Specification

    • Appearance: White freeze-dried solid powder
    • Test Method: Tested by HPLC analysis; COA certification is available upon customer’s request
    • Solubility: Dissolvable in qualified lab solvent with gentle stirring at ambient temperature
    • Form: Lyophilized powder
      Product Advantages
    • All batches complete standardized HPLC detection, relevant test document can be supplied on demand
    • No extra artificial additives or preservatives are added during whole production procedure
    • Maintains stable physicochemical characteristics under regulated storage environment
    • Consistent product traits among all production batches
      Application Scope
      FOR LABORATORY RESEARCH USE ONLY, NOT FOR HUMAN/ANIMAL INGESTION, NOT FOR FOOD, COSMETIC OR MEDICAL MANUFACTURING.

      Available for below laboratory research projects:

      1. Biochemical pathway and amino acid related mechanism exploration tests
      2. In vitro cell cultivation and peptide property exploratory research
      3. Raw material formulation development for laboratory testing projects
      4. Peptide structure-activity correlation lab experiments
        Storage Instruction
      5. Long-term storage: Tightly seal container and store at -20℃ dry cold surroundings; avoid frequent temperature fluctuation and repeated freeze-thaw cycles to preserve raw material stability
      6. Short-term storage: Keep hermetically sealed under 2℃~8℃ refrigerated surroundings
      7. Avoid direct sunlight, high temperature and humid air to prevent powder moisture absorption and agglomeration
      8. Seal packaging promptly after partial raw material sampling to reduce air exposure duration
      9. Keep separately from strong oxidants, acidic and alkaline chemical reagents
      10. Shelf Life: 24 months under above specified storage conditions
        Lab Preparation Guide
        All configuration operations shall be completed inside ventilated standard laboratory space:

        1. Prepare appropriate lab solvent in accordance with self-designed experimental scheme
        2. Add solvent into clean lab container first, then add lyophilized powder slowly, stir mildly at room temperature until full dissolution to form homogeneous liquid
        3. Divide prepared solution into multiple sealed experimental containers as per experiment dosage demand
        4. Seal unused leftover raw powder tightly and transfer into designated low-temperature storage promptly
        5. Dispose residual liquid and experimental residues complying with local laboratory chemical waste management regulations
          Important Notes
        6. This commodity is professional research raw material only for laboratory scientific test, strictly forbidden for oral intake, food processing and all kinds of daily commercial application.
        7. Wear protective gloves and eye shield during whole operation process to avoid long-time direct contact between raw material and human skin or eyes.
        8. Never leave raw material exposed in open air for long period to prevent deliquescence and property variation.
        9. Keep goods far away from children and domestic pets to avoid accidental contact.


    Items Specifications
    CAS No 56-53-1
    Product Name Diethylstilbestrol
    Appearance White lyophilized powder
    Specification 10 pieces per box
    Origin Guangzhou
    Purity ≥98% HPLC
    Storage Keep sealed, cool, dry and away from light

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    Shop Research Grade Kisspeptin-10 Lyophilized Powder, Laboratory Biochemical Research Material-Detailed Image 4 Shop Research Grade Kisspeptin-10 Lyophilized Powder, Laboratory Biochemical Research Material-Detailed Image 5


      Usage Method  


      • The below operating specifications are only suitable for laboratory scientific research and sample preparation work. This product cannot be used for human & animal application, food processing, cosmetic and medical production.

        1.Pre-operation Preparation


        Carry out all operations inside clean, dry and well-ventilated lab space. Use standard lab containers, measuring tools and protective supplies to guarantee dust-free operating environment and avoid impurity cross-contamination.

        2.Sample Dissolution & Preparation


        Select appropriate laboratory solvent based on your own experimental scheme and relevant research literature. Add required solvent into clean container first, then add HGH 191AA lyophilized powder, stir mildly at room temperature until all powder fully dissolves to form uniform transparent liquid. The mixing dosage and solution concentration can be adjusted flexibly according to different experiment designs.

        3.Subpackage & Temporary Storage


        After solution preparation is finished, divide the liquid into multiple sealed lab containers as per experiment dosage demand. Seal leftover unused raw powder tightly right after sampling to isolate air and moisture, then store under designated low-temperature condition promptly to maintain raw material stability.

        4.Waste Disposal after Experiment


        All residual liquid, waste samples and experimental residues need classified disposal following local laboratory chemical waste management regulations, random dumping is forbidden.

        Important Notes


        1. This item is exclusive laboratory research raw material, oral intake, food manufacture and daily commercial usage are strictly prohibited.
        2. Wear protective gloves and eye shield during full operating process to prevent long-term direct contact between raw material and human skin or eyes.
        3. Never leave raw material exposed in open air for long time to avoid moisture absorption, caking and property variation.
        4. Keep the goods far away from children and pets to prevent accidental touching.
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      Storage Guidelines  


        • Storage Requirements


          1. Long-term preservation: Seal container tightly and store at -20℃ dry cold surroundings; avoid frequent temperature fluctuation and repeated freeze-thaw cycles to keep raw material stable.
          2. Short-term temporary storage: Keep hermetically sealed under 2℃~8℃ refrigerated condition.
          3. Keep away from direct sunlight, high temperature and humid ambient air to prevent powder moisture absorption and agglomeration.
          4. After partial raw material taking, seal original packaging promptly to shorten air exposure duration.
          5. Store separately from strong oxidants, acidic and alkaline chemical reagents.

          Shelf Life


          24 months when stored in accordance with above specified storage conditions.

          Reminder


          Keep out of reach of kids and pets. This raw material is only for laboratory research application, not for edible usage.
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     Hong Kong Bosen Peptide R&D Co., Limited


    Hong Kong Bosen Peptide R&D Co., Limited is a professional biotechnology company headquartered in Hong Kong, with a focus on peptide research, development, production and global supply. Rooted in the Greater Bay Area’s strong biotech ecosystem, we integrate cutting-edge R&D capabilities, strict quality control systems and efficient global logistics to deliver high-quality peptide products and technical solutions to customers worldwide.

    Core Business & Product Portfolio


    We specialize in the R&D, customization and commercial production of high-purity peptides, modified peptides and related biotech raw materials. Our product portfolio covers:

    • Therapeutic peptides: SS-31 (Elamipretide), Tirzepatide, Semaglutide, Retatrutide (RT20), etc.
    • Functional peptides: GHK-Cu, TB500, KPV, NAD, Glutathione, etc.
    • Custom peptide services: Custom synthesis of complex sequences, long-chain peptides (up to 200 amino acids) and cyclic peptides, as well as various modification services (N-methylation, unusual amino acid incorporation, etc.).

    R&D & Manufacturing Strength


    • Technical expertise: Mastery of core technologies including solid-phase peptide synthesis (SPPS), liquid-phase synthesis, advanced purification (HPLC) and strict structural characterization.
    • Quality assurance: All products are produced in compliance with cGMP standards, with complete CoA, HPLC and MS reports to ensure batch-to-batch consistency and high purity (≥98%).
    • Production capacity: Equipped with professional production bases in Guangzhou, supporting small-batch R&D samples to large-scale commercial production, with stable supply capacity.

    Global Market & Service Philosophy


    With a customer base spanning the Philippines, the United States, Brazil, Russia, Bangladesh and other regions, we adhere to the service philosophy of "Quality First, Customer Centric". We provide one-stop services including product consultation, customization, technical support and global logistics solutions (door-to-door delivery, customs clearance assistance), committed to becoming a reliable long-term partner for global biotech enterprises, research institutions and health industry clients.

    Vision


    We are dedicated to advancing peptide technology innovation, expanding the application of peptides in health and medical fields, and contributing to global human health with high-quality products and professional services.
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    Certificates
    • Synthetic 19AA Somatropi freeze-dried powder, exclusive biochemical raw material for laboratory research experiments. Certificates 1

    Basic Info
    Product Name:

    Diethylstilbestrol

    Other Name:

    Phenol,4,4′-[(1E)-1,2-diethyl-1,2-ethenediyl]bis-;4,4′-Stilbenediol,α,α′-diethyl-,(E)-;Phenol,4,4′-(1,2-diethyl-1,2-ethenediyl)bis-,(E)-;4,4′-Stilbenediol,α,α′-diethyl-,trans-;4,4′-[(1E)-1,2-Diethyl-1,2-ethenediyl]bis[phenol];Bio-des;Comestrol;Cyren A;DEB;DES;Di-Estryl;trans-α,α′-Diethyl-4,4′-stilbenediol;Domestrol;Estilbin MCO;Estrobene;Estrosyn;Fonatol;Grafestrol;Hi-Bestrol;Microest;Milestrol;Oestrogenine;Oestromenin;Oestromensyl;Palestrol;Serral;Sexocretin;Sibol;Stil;Stilbestrol;Stilbetin;Stilboestroform;Stilboestrol;Stilkap;Stil-Rol;Synthoestrin;Syntofolin;trans-Diethylstilbestrol;Diethylstilbestrol;Stilboefral;α,α′-Diethyl-4,4′-stilbenediol;Dawe's destrol solution;4,4′-Dihydroxy-α,β-diethylstilbene;Bufon;Antigestil;Neo-Oestranol I;Distilbene;Iscovesco;Synestrin;(E)-4,4′-(1,2-Diethyl-1,2-ethenediyl)bisphenol;α,α′-Diethylstilbenediol;Dawe's destrol;DiBestrol 2 Premix;Rumestrol 2;Rumestrol 1;4,4′-Dihydroxydiethylstilbene;Cyren;Synthofolin;Pabestrol;Estromenin;Menostilbeen;Agostilben;DES (synthetic estrogen);trans-4,4′-Dihydroxy-α,β-diethylstilbene;(E)-3,4-Bis(4-hydroxyphenyl)-3-hexene;(E)-Diethylstilbestrol;Vagestrol;Oestromon;NSC 3070;Bertrol;trans-α,α′-Diethyl-4,4′-dihydroxystilbene;Estrogenine;8026-45-7;8028-09-9;8030-34-0;8049-42-1;8053-00-7

    CAS No.:

    56-53-1

    Molecular Formula:

    C18H20O2

    InChIKeys:

    InChIKey=RGLYKWWBQGJZGM-ISLYRVAYSA-N

    Molecular Weight:

    268.35

    Exact Mass:

    268.35

    EC Number:

    200-278-5

    UNII:

    731DCA35BT

    NSC Number:

    756736|3070

    UN Number:

    3077

    DSSTox ID:

    DTXSID3020465

    NCI Thesaurus Code:

    C433

    Color/Form:

    White crystalline powder|Small plates from benzene

    ATC Code:

    G - Genito urinary system and sex hormones|L - Antineoplastic and immunomodulating agents

    HScode:

    2942000000

    Categories:

    Polypeptide

    Characteristics
    PSA:

    40.5

    XLogP3:

    1.14

    Appearance:

    White to almost white Crystalline Powder

    Density:

    1.2

    Melting Point:

    169-172 °C

    Boiling Point:

    407.1±25.0 °C at 760 mmHg

    Flash Point:

    104°C c.c.

    Refractive Index:

    1.603

    Water Solubility:

    Practically insoluble in water;methanol: 0.1 g/mL, clear, faintly yellow

    Storage Conditions:

    0-6°C

    Vapor Pressure:

    Vapour pressure, Pa at 20°C: 20

    Vapor Density:

    Relative vapour density (air = 1): 5.3

    Toxicity:

    LD50 oral in rat: > 3gm/kg

    Explosive limit:

    vol% in air: 1.82.2

    Odor:

    Odorless

    Collision Cross Section:

    175.64 Ų [M-H]-

    Experimental Properties:

    CIS-ISOMER TENDS TO REVERT TO TRANS-FORM

    Air and Water Reactions:

    Insoluble in water.

    Reactive Group:

    Hydrocarbons, Aliphatic Unsaturated

    Reactivity Profile:

    DIETHYLSTILBESTROL is incompatible with strong oxidizing agents, strong bases, acid chlorides and acid anhydrides (NTP, 1992).

    Hazard Identification

    Classification of the substance or mixture

    Skin irritation, Category 2

    Eye irritation, Category 2

    Specific target organ toxicity – single exposure, Category 3

    Carcinogenicity, Category 1B

    Reproductive toxicity, Category 1B

    Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

    Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H315 Causes skin irritation

    H319 Causes serious eye irritation

    H335 May cause respiratory irritation

    H350 May cause cancer

    H360 May damage fertility or the unborn child

    H410 Very toxic to aquatic life with long lasting effects

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

    P271 Use only outdoors or in a well-ventilated area.

    P203 Obtain, read and follow all safety instructions before use.

    P273 Avoid release to the environment.

    Response

    P302+P352 IF ON SKIN: Wash with plenty of water/...

    P321 Specific treatment (see ... on this label).

    P332+P317 If skin irritation occurs: Get medical help.

    P362+P364 Take off contaminated clothing and wash it before reuse.

    P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

    P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

    P319 Get medical help if you feel unwell.

    P318 IF exposed or concerned, get medical advice.

    P391 Collect spillage.

    Storage

    P403+P233 Store in a well-ventilated place. Keep container tightly closed.

    P405 Store locked up.

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Separated from food and feedstuffs. Dry. Well closed. Keep in a well-ventilated room. Store in an area without drain or sewer access.PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. Chemical Carcinogens

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Tirzepatide,Retatrutide,Semaglutide,GHK-Cu

    Location:

    RM 701, UNIT 108, 7/F, TWR B NEW MANDARIN PLAZA 14 SCIENCE MUSEUM RD TSIM SHA TSUI HONG KONG

    Year of Establishment:

    2026

  • Inquiry History
    5 Inquiries
    Country Product Purchase Quantity Date Posted
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    United Kingdom

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