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TNJONE High Quality 99% Top Quality Ortho Phthalaldehyde CAS 643-79-8 O-Phthalaldehyde

Name: TNJONE High Quality 99% Top Quality Ortho Phthalaldehyde CAS 643-79-8 O-Phthalaldehyde
Brand: TNJONE
SKU: pr2408021218
Price: 39 USD
Availability: InStock

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CAS No.:

643-79-8

Grade:

What is o-Phthalaldehyde ?

O-Phthalaldehyde or ortho-phthalaldehyde (OPA) is the chemical compound with the formula C6H4(CHO)2. Often abbreviated OPA, the molecule is a dialdehyde, consisting of two formyl (CHO) groups attached to adjacent carbon centres on a benzene ring. This pale yellow solid is a building block in the synthesis of heterocyclic compounds and a reagent in the analysis of amino acids. OPA dissolves in water solution at pH < 11.5. Its solutions degrade upon UV illumination and exposure to air.

Name	o-Phthalaldehyde
purity	99%
Standard packing material	Bag/Box/Bottle
English synonyms	The developMent of forMaldehyde;O-PHTHALDIALDEHYDE REAGENT SOLUTION*;PHTHALALDEHYDE;TIMTEC-BB SBB008450;2-PHTHALALDEHYDE;2-PHTHALDEHYDE;2-PHTHALDIALDEHYDE;o-Phenyldialdehyde
Shelf Life	2Years
Storage	Stable, but refrigerated. Incompatible with strong oxidants, nitric acid, permanganate and peroxide.under inert gas (nitrogen or Argon) at 2–8 °C

Function and Application

1. 1, chemical field analysis reagent: as an amine alkaloid reagent, used for fluorescence determination of primary amine and peptide bond decomposition.
  2. Organic synthesis: It is also a pharmaceutical intermediate
  3, fluorescent reagent, used for pre-column HPLC separation of amino acid derivatives, flow cytometry measurement of protein mercaptan groups.

4.Mainly used in medicine, dyes, amino acid derived reagents and so on.

Company Profile

Shaanxi TNJONE Pharmaceutical Co., Ltd is a high-tech enterprise mainly engaged inthe development and sale of pharmaceutical chemical raw materials and relatedproducts.The company has advanced and perfect supporting system,forming advancedchemical synthesis technology, which can quickly meet the individual needs and serialdevelopment from suitable detection to industrial production.Qur business covers morethan 30 countries, most of customers from Europe, Southeast Asia and other countriesin the world, we can guarantee the quality and price. Our enterprise purpose is basedon the market, strengthen strength, take the road of scientific environmental protectionand sustainable development, rely on the country. The company has a strong financialstrength and a good business environment, can provide customers with quality,efficientand fast service.

Our Advantages

1.High quality and competitive price.
2.Free sample for your evaluation.
3.Promptly delivery by well-reputed shipping lines.
4.Trial order is available for testing after samples.
5.We will inform you all the information at every stage in advance.
6.Packaging can gear to buyers' special request.

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Our package

How to order

Before ordering	Please send what items and what quantity you need
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After payment	Please offer shipping address after payment for shipment.
Tracking	We will provide the tracking after goods sent.
Lead time	About 1-5 working days after payment
Shipping time	About 8-15 days door to door
After-sale service	Available always

ECHEMI Editorial Reference

o-Phthalaldehyde is a pale yellow crystalline solid.

o-Phthalaldehyde is mainly used as a high-level disinfectant (a low-temperature chemical method) for heat-sensitive medical and dental equipment such as endoscopes and thermometers; in recent years, it has gained popularity as a safe and better alternative to glutaraldehyde.
There are some researches show, pH7.5 contains the sterilizing agent of o-phthalaldehyde 0.5%, and its sterilizing power, sterilization speed, stabilit
YELLOW SOLID IN VARIOUS FORMS WITH CHARACTERISTIC ODOUR.
Phthalaldehyde is a dialdehyde in which two formyl groups are attached to adjacent carbon centres on a benzene ring. It has a role as an epitope. It is a dialdehyde and a member of benzaldehydes.|A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids.

Basic Info

Product Name:

Phthalaldehyde

Other Name:

1,2-Benzenedicarboxaldehyde;Phthalaldehyde;o-Phthalaldehyde;o-Phthaldialdehyde;Phthalic aldehyde;Phthalic dialdehyde;Phthalyldicarboxaldehyde;2-Formylbenzaldehyde;Benzene-1,2-dicarbaldehyde;o-Phthalic dialdehyde;1,2-Diformylbenzene;o-Diformylbenzene;CIDEX OPA;OP 100S;OP 100SF;1,2-Phthalaldehyde;o-Benzenedicarbaldehyde;NSC 13394;Phtharal;2-Phthalaldehyde;1,2-Formylbenzene

CAS No.:

643-79-8

Molecular Formula:

C8H6O2

InChIKeys:

InChIKey=ZWLUXSQADUDCSB-UHFFFAOYSA-N

Molecular Weight:

134.13

Exact Mass:

134.13

BRN:

878317

EC Number:

211-402-2

UNII:

4P8QP9768A

ICSC Number:

1784

NSC Number:

13394

UN Number:

2923

DSSTox ID:

DTXSID6032514

Color/Form:

Long, pale yellow needles from petroleum ether (MP 56-56.5 °C). Also reported as colorless powder (MP: 54 °C)|Yellow needles or crystals from ligroin

HScode:

29122900

Categories:

Other Chemical Drugs

Characteristics

PSA:

34.1

XLogP3:

1.2

Appearance:

yellow powder

Density:

1.2±0.1 g/cm3

Melting Point:

55-56 °C

Boiling Point:

83-84 °C (0.7501 mmHg)

Flash Point:

>230 °F

Refractive Index:

1.623

Water Solubility:

H2O: soluble

Storage Conditions:

2-8°C

Vapor Pressure:

0.0052 mm Hg at 21 °C (0.69 Pa)

Vapor Density:

Relative vapor density (air = 1): 4.6

Toxicity:

LD50 orally in Rabbit: 178 mg/kg LD50 dermal Rat > 2000 mg/kg

Henrys Law Constant:

Henry's Law constant = 1.8X10-8 atm-cu m/mol at 25 °C (est)

Experimental Properties:

Hydroxyl radical reaction rate constant = 2.30X10-11 cu cm/molec-sec at 25 °C)

See More Phthalaldehyde Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 3, Oral

Skin corrosion, Category 1

Skin sensitization, Sub-category 1A

Serious eye damage, Category 1

Specific target organ toxicity â single exposure, Category 3

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

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H301 Toxic if swallowed H314 Causes severe skin burns and eye damage H317 May cause an allergic skin reaction H318 Causes serious eye damage H335 May cause respiratory irritation H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment.
Response	P301+P316 IF SWALLOWED: Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P330 Rinse mouth. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 Wash contaminated clothing before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P316 Get emergency medical help immediately. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P302+P352 IF ON SKIN: Wash with plenty of water/... P333+P317 If skin irritation or rash occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P319 Get medical help if you feel unwell. P391 Collect spillage.
Storage	P405 Store locked up. P403+P233 Store in a well-ventilated place. Keep container tightly closed.
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.

See More Phthalaldehyde Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Semaglutide,Tirzepatide,API,Vitamins,Food Additive

Location:
No. 4C-11-A392, Financial Port, Northwest corner of Fengjing Avenue and Fengxin Road, Fengdong New City, Xi 'an, Shaanxi Province

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
5 days

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2019

Shaanxi TNJONE Pharmaceutical Technology Co., LTD., located in the beautiful ancient capital Xi 'an, is committed to the peptide industry, pharmaceutical raw materials, food and feed additives, veterinary drugs and other fields, the enterprise adhering to provide customers with quality service, supply high-quality products, "world peace and health" as its responsibility, the company adhering to the "meet all customer requirements for products" as the service concept, Guarantee "provide qualified products" as the service principle, so that you get "God-like" noble shopping enjoyment. Our company has more than 1000 kinds of polypeptides, raw materials inventory, at any time to meet the various needs of customers for products. Is your best partner.

Inquiry History

5 Inquiries

Country	Product	Purchase Quantity	Date Posted
Zimbabwe	Opa 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde	5 KG	Mar 4, 2026
South Africa	Ortho-phthalaldehyde	500.00 KG	Oct 9, 2026
India	Phthalaldehyde	10.00 MT	Feb 18, 2024
Zimbabwe	Opa 99% Ortho Phthalaldehyde Powder	5 KG	Mar 5, 2026
Namibia	o-Phthalaldehyde OPA 99% Yellowish crystal 643-79-8 FinerChem	25 G	Dec 4, 2024

Post an enquiry for this product

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o-Phthalaldehyde	Pharmaceutical Grade/99	$100/KG EXW	QUANHUI BIO	Inquiry
Opa 99% Ortho Phthalaldehyde Powder 643-79-8	Chemical Grade/99	$5.2-6.24/KG FOB	Wuhan Pnq Int Trade Co., Ltd	Inquiry
O-Phthalaldehyde CAS 643-79-8 99% Min HPLC Derivatization Reagent and Pharmaceutical Intermediate	High Purity Grade/98	$96/KG FOB	Shaanxi Dideu Medichem Co. Ltd	Inquiry
Antibacterial Disinfectant o-Phthalaldehyde/OPA CAS:643-79-8 99% Yellowish crystal	Pharmaceutical Grade/99.9	$6-7/G FOB	Hangzhou Hyper Chemicals Limited	Inquiry
o-Phthalaldehyde	Different Grade/99.9	$0.1/KG EXW	Amitychem	Inquiry

TNJONE High Quality 99% Top Quality Ortho Phthalaldehyde CAS 643-79-8 O-Phthalaldehyde

Product Details

Seller Information

Inquiry History

What is o-Phthalaldehyde ?

o-Phthalaldehyde

The developMent of forMaldehyde;O-PHTHALDIALDEHYDE REAGENT SOLUTION*;PHTHALALDEHYDE;TIMTEC-BB SBB008450;2-PHTHALALDEHYDE;2-PHTHALDEHYDE;2-PHTHALDIALDEHYDE;o-Phenyldialdehyde

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

More Choices Find All Products for Sale 

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