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china supply 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde for sale

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CAS No.:

643-79-8

Grade:

Pharmaceutical Grade

Content:

99%

Port:

QINGDAO

Brand:

Packaging:

1kg ,25kg or according to customer's detail requirement.

Price valid (until):

2025-06-26

Contact Supplier

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Nanjing Huaman Import and Exp

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Propylene glycol

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Shop china supply 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde for sale-Detailed Image 1

What is Ortho Phthalaldehyde/O-Phthalaldehyde ?

O-Phthalaldehyde is a pharmaceutical intermediate, which has been widely used in the determination of aminoalkaloids, fluorometer histamine and pharmaceutical testing. The finished product is light yellow acicular crystal, soluble in water, alcohol, ether and other organic solvents, no bad odor, stable chemical properties.

Items	Specifications
Product name	Ortho Phthalaldehyde/O-Phthalaldehyde
CAS No.	643-79-8
MF	C8H6O2
MW	134.13
EINECS.No	211-402-2
Melting Point	55-58 °C(lit.)
Boiling Point	83-84 °C (0.7501 mmHg)
Density	1.13 (rough estimate)
Appearance	Light Yellow Crystalline Powder
Shelf Life	2 Years When Properly Stored
Storage	Keep in a cool, dry, dark location in a tightly sealed container or cylinder.

Shop china supply 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde for sale-Detailed Image 2

Certification

Certificate of Analysis
Item	Specification	Result
Assay	99%	99.68%
Appearance	Light Yellow powder	conforms
Odor	Characteristic	conforms
Taste	Characteristic	conforms
Particle Size	NLT 100% Through 80 mesh	conforms
Loss on Drying	<2.0%	0.46%
Heavy metals
Total Heavy Metals	≤10ppm	conforms
Arsenic	≤3ppm	conforms
Lead	≤3ppm	conforms
Microbiological Tests
Total Plate Count	≤1000cfu/g	conforms
Total Yeast & Mold	≤100cfu/g	conforms
E.Coli	Negative	Negative
Salmonella	Negative	Negative
Salmonella	Negative	Negative

O-Phthalaldehyde Application:

This product is a pharmaceutical intermediate, the latest high-efficiency external safe antimicrobial disinfectant. As a disinfectant for endoscopic surgical instruments in hospitals, it can be used tosynthesize indolepofen, a new anti-platelet aggregation drug, and is also an analytical reagent in the chemical field.

Chemical reagents: As amine alkaloids reagents, they are used for fluorimetric determination of primary amine and peptide bond decomposition products.

The fluorescent reagent is used for the separation of amino acid derivatives by pre-column high performance liquid chromatography and the measurement of thiol groups of proteins by flow cytometry.

Shop china supply 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde for sale-Detailed Image 3

Our advantage ：

★ The company has been established for more than 10 years with rich export experience and experienced transportation team.

★ Awesome after sales.1 to 1 customer service to solve any problems from the beginning of the inquiry to the receipt of goods

★ Quality is guaranteed.

Shipping Advise

1. By Express

------Suitable for under 50kg, Fast:3-7 days.

High cost; Door to door service. Easy to pick up the goods.

2. By Air

------Suitable for more than 50 kg, Fast:3-7 days,

High cost, airport to airport. professional broker needed.

3. By sea

------Suitable for more than 500kg. Slow: 5-45 days,

Low cost. Port to Port, professional broker needed.

Service

1. Any inquiries will be replied within 24 hours.

2. Dedication to quality, supply & service.

3. Strictly on selecting raw materials.

4. OEM/ODM Available.

5. Reasonable & competitive price, fast lead time.

6. Sample is available for your evaluation & formulation development.

Shop china supply 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde for sale-Detailed Image 4

Certificates

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:

Bulk Drug Intermediates

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:
Trader

Main Products:
Propylene glycol

Location:
No .41 Optics Valley Avenue, East Lake High-tech Development Zone, Wuhan ,China

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

Average lead Time:
5

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2024

Nanjing Huaman Import and Export Co., Ltd was established in 2024 with strong research and development capabilities and superb synthesis technology, as well as advanced quality control measures. Effectively promote the joint venture and cooperation with the major enterprises, manufacturers, with the idea of industrial development to serve the society and the majority of users. We always adhere to the market demand as the orientation, constantly synthesizing new high-tech chemical products , mainly exported to the United States, Europe, India, South Africa, Nigeria and other countries and regions, has a wealth of export experience, to ensure transportation safety, can let each customer as soon as possible to safely receive the goods.

Inquiry History

4 Inquiries

Country	Product	Purchase Quantity	Date Posted
Zimbabwe	Opa 99% Ortho Phthalaldehyde Powder 643-79-8 O-Phthalaldehyde	5 KG	Mar 4, 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

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