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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > Methylene blue trihydrate for Sale > Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate
Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate buy - large image1
Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate buy - image1
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Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate buy - image3
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Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate buy - image6

Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate

TDS 4 Inquiries

Unit Price: Get Latest Price
CAS No.:

7220-79-3

Grade:

Pharmaceutical Grade

Content:

99%

Port:

shanghai

Brand:

YH

Packaging:

25kg/drum

Price valid (until):

2025-03-13

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

Food Additives,Active Pharm Ingredients,Chem & Pharm Intermediates,Organic Intermediates

  • Product Description

  • Seller Information

  • Inquiry History

  • Description
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 1
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 2
    Items Specifications
    Product name
    methylene/ basic blue 9
    CAS NO
    7220-79-3
    Form
    Powder/Solid
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 3

    1. Basic information

    Chemical name: Methylene blue, also known as methylene blue, tetramethyl blue, etc

    English name: Methylene Blue

    Molecular formula: C 16 H 18 ClN 33H 2 O

    Molecular weight: 373.9 g/mol (anhydrous)

    EC number: 200-515-2

    2. Physical and chemical properties

    Appearance: Bright dark green crystals or small dark brown powder, with bronze luster, odorless, stable in air.

    Solubility: 1g is soluble in approximately 25ml of water and 65ml of ethanol, with a sky blue solution. It is soluble in chloroform and insoluble in ether and benzene.

    Melting point: 180 ° C (decomposition)

    PH value: 3 (10g/L, H2O, 20 ° C)

    Spectral characteristics: maximum absorption wavelength 668, 609nm

    3. Purpose

    a. Biological field

    Bacterial staining agent: It can stain bacterial cells and facilitate the observation of bacterial morphology, structure, and arrangement under a microscope. It is commonly used in bacteriological experiments such as Gram staining.

    Cell staining: Prepare staining solution for exfoliated cells to stain exfoliated cells and assist in pathological diagnosis. Alkaline methylene blue staining solution can also be prepared for staining microbial cells and tissue sections.

    b. In the field of chemical analysis

    Redox indicator: In redox titration, the endpoint of the titration is indicated by a change in color.

    Measurement of metal ions: used to determine the content of metal ions such as mercury and tin.

    Precipitant: used as a reducing titrant to precipitate perchlorates and rhenium salts.

    c. Medical field

    Treatment of methemoglobinemia: Reduce methemoglobin to normal hemoglobin and restore its oxygen carrying function.

    Treatment of cyanide poisoning: When used in combination with sodium thiosulfate, cyanide ions can be converted into relatively non-toxic thiocyanate and excreted from the body.

    Other: Methylene blue also has anti malaria, anti depression, and anti anxiety effects, and can be used for research and treatment of related diseases.

    d. Other fields

    Aquaculture: used to control diseases such as water mold and small melon worms, with minimal damage to fish.

    In the industrial sector, it is used for dyeing cotton, acrylic fiber, linen, silk, paper, as well as for coloring bamboo and wood, and for manufacturing ink and color lakes.

    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 4
    Shop Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate-Detailed Image 5 Shop Methylene Blue trihydrate Cas 7220-79-3 99% Basic Blue 9 Cas 7220-79-3 Methylene Blue trihydrate-Detailed Image 6

    Shop Acid dye CI4600 orange 4 cas 633-96-5 acid orange 7 for inks wood preservatives textiles hair dyes cosmetics wound dressing etc-Detailed Image 7

    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 8
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    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 10

    Shop Hot sales Professional Manufacturer Supply High Quality P-XYLENOLPHTHALEIN CAS 50984-88-8-Detailed Image 11

    Packaging Details: 25 kg/bag or as your requirement.
    Port: Tianjin/ Qingdao/ Shanghai, etc.
    We can ship the samples by air.
    Lead Time: Within 2~3days Shipment after receiving the advance payment or original L/C.

    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 12
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 13
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 14
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 15

    XI'AN YI HANG CHEMICAL CO.,LTD was founded in 2002, located in xian City, shannxi, China. We are the high-tech chemical enterprise which specialized in researching, manufacturing and trading for chemical raw materials ,our products widely used in paints, textile, rubber, leather, plastic and so on.

    With many years development and operation,we have become the group company for chemical production,we have the owned factory for produce stable quality products with high performance, and the advanced lab to ensure the best quality of each batch products.

    We have our strictly quality control in our production, and we have passed ISO9001:2015 Quality Management System Certification and ISO14001 Environment Management System Certification.

    Our main products includes Titanium Dioxide, Lithopone, Iron Oxide series, Chrome Oxide Green, Zinc Oxide, Carbon Black, STPP, SHMP, Oxalic Acid, DOP, SLES, and so on.

    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 16
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 17
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 18
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 19
    Shop Hot Selling PH indicator Phenol Red CAS 143-74-8 With Low Price-Detailed Image 20

    Q1: Are you manufacturer or trading company?

    A1:Manufacturer.

    Q2: Can I get some sample?
    A2: Yes, usually 10-25g sample for free.

    Q3: Is there a discount?
    A3: Of course, welcome to contact us. Price would be different based on different quantity. For bulk
    quantity, we will have discount for you.

    Q4: How long for production and delivery?
    A4: Most products we have in stock, sent time:Within 1-3 business days after received payment. Customized products further discussed.

    Q5: Do you accept ODM or OEM service?
    A5: Yes,we accept ODM and OEM services, ranges: Soft gel, Capsule, Tablet, Sachet, Granule,Private Label service, etc. Please contact us to design your own brand product.

    Q6: How to deliver the goods?
    A6: ≤50kg ship by FedEx or DHL etc, ≥50kg ship by Air, ≥100kg can be shipped by Sea. If you have special request on delivery, please contact us.

    Q7: How to start orders or make payments?
    A7:There are two ways for you to confirm order:
    1. Proforma invoice with our company bank details will be sent to you once the order confirmed by Email. Pls arrange payment by TT. Goods will be sent after received payment within 1-3 business days.
    2. Trade assurance order will be drafted for you through ALIBABA. Pls confirm and pay through Alibaba. Goods will be sent after received payment within 1-3 business days.

    Certificates

    Basic Info
    Product Name:

    Methylene blue trihydrate

    Other Name:

    Phenothiazin-5-ium,3,7-bis(dimethylamino)-,chloride,hydrate (1:1:3);C.I. Basic Blue 9,trihydrate;Phenothiazin-5-ium,3,7-bis(dimethylamino)-,chloride,trihydrate;3,7-Bis(dimethylamino)phenazathionium chloride trihydrate;Methylene blue trihydrate

    CAS No.:

    7220-79-3

    Molecular Formula:

    C16H18N3S.Cl.3H2O

    InChIKeys:

    InChIKey=XQAXGZLFSSPBMK-UHFFFAOYSA-M

    Molecular Weight:

    373.89800

    Exact Mass:

    373.12300

    EC Number:

    615-731-6

    UNII:

    T42P99266K

    DSSTox ID:

    DTXSID0025600

    NCI Thesaurus Code:

    C644

    HScode:

    32129000

    Characteristics
    PSA:

    75.07000

    XLogP3:

    -0.69000

    Appearance:

    Methylene blue trihydrate appears as odorless or almost odorless dark green crystals with bronze luster or dark green crystalline powder. pH (1% solution in water) 3 to 4.5 . (NTP, 1992)

    Density:

    0.98 g/mL at 25 °C

    Melting Point:

    190ºC

    Flash Point:

    14ºC

    Water Solubility:

    H2O: 4 g/100 mL

    Storage Conditions:

    Store at RT.

    Vapor Pressure:

    1.30X10-7 mm Hg at 25 deg C (est)

    Air and Water Reactions:

    Hygroscopic. Water soluble. Gives a blue solution in water.

    Reactive Group:

    Amines, Phosphines, and Pyridines

    Reactivity Profile:

    METHYLENE BLUE TRIHYDRATE is incompatible with strong oxidizing agents, caustics, alkali metal iodides and reducing agents. Also incompatible with dichromates. It forms double salts with many inorganic salts. Is bleached reversibly by (zinc + hydrochloric acid) or sodium hydrosulfite. In aqueous solution, this chemical is decolorized by zinc dust and dilute sulfuric acid, but the color is restored upon exposure to air and more rapidly upon addition of ammonium hydroxide. (NTP, 1992)

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    Skin irritation, Category 2

    Eye irritation, Category 2

    Specific target organ toxicity – single exposure, Category 3

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Warning

    Hazard statement(s)

    H302 Harmful if swallowed

    H315 Causes skin irritation

    H319 Causes serious eye irritation

    H335 May cause respiratory irritation

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    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.

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    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.

    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

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Food Additives,Active Pharm Ingredients,Chem & Pharm Intermediates,Organic Intermediates

    Location:

    No.15 Qinling Avenue,Caotang Industrial Park,High-techZone,Xi'an Shaanxi China

    Payment Terms:

    L/C,100% TT in advance

    Average lead Time:

    15

    Total Annual Revenue:

    $1 million-$2.5 million

    Total Employees:

    51-100

    Year of Establishment:

    2024

  • Inquiry History
    4 Inquiries
    Country Product Purchase Quantity Date Posted
    India

    Methylene blue

    100 KG Aug 26, 2024
    India

    Methylene blue trihydrate

    100 KG May 19, 2026
    Pakistan

    redox indicator

    1 KG Aug 19, 2025
    United Kingdom

    Methylene blue raw powder

    1 MT Sep 25, 2025
    Post an enquiry for this product
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