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632-79-1Tetrabromophthalic Anhydride rich stock!

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CAS No.:

632-79-1

Grade:

Pharmaceutical Grade

Content:

99%

Port:

tianjin

Brand:

Packaging:

25KG/BAG

Sample Available:

Yes

Price valid (until):

2026-03-26

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Hebei Shunxing Import and Export Co.,Ltd

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

7 days

Qualification:

Main Products:

HPMC,Lithium Carbonate,Cellulose Acetate Tow,EVA resin,Terpene Resin,PP fiber

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Product Details
Seller Information
Inquiry History

Description

Product Description

Product Description
Crospovidone, also known as polyvinylpolypyrrolid or PVP-C, is a synthetic, water-insoluble polymer that is widely used in the pharmaceutical industry. It is a white, free-flowing that exhibits excellent swelling and binding properties.

Shop Top Factory Direct Sale Polyvinylpyrrolidone K30 K60 K90 cas 9003-39-8-Detailed Image 1

PVP K30 / Hair-care / CAS 9003-39-8 cosmetic grade
Technical Grade PVP
Product Name:Polyvinylpy-rrolidone

Chemical De scription:Homopolymer of 1-Vinly-2-Py-rrolidone,Polyvinylpy-rrolidone

INCI/ CTFA:PVP

Product P roperties:Technical grade PVP(PVP K Series) products are existing as powder and water solution form,and being supplied in a wide molecular weight range,easily dissolve in water,alcohol and other organic solvents.They are highly hygroscopicity,excellent film-forming capacity,adhesiveness and chemical stability,none toxicity.

Specifications:

TEST ITEMS	SPECIFICATIONS	TEST VALUE
Appearance	White powder	Complies
K Value	27-32	30.08
N-vinylp-yrrolidone ppm	< 10	< 10
Moisture %	< 5.0	3.85
Sulfateash %	< 0.1	0.054
PH value	3-7	3.72
Nitr-ogen %	11.5-12.8	12.0
Aldehyde (as acet-aldehyde) %	< 0.05	< 0.05
Heavy metal (as lead) ppm	< 10	< 10
Hydr-azine ppm	< 1.0	< 1.0
Peroxide ppm	< 400	< 400

Product name	Polyvinylpy-rrolidone
CAS	9003-39-8
Storage	2-8°C
Boiling point	90-93 °C
Melting point	>300 °C
PH	3.0-5.0
Solubility	H2O: soluble100mg/mL
MF	CH4

Function
Crospovidone plays a crucial role as a disintegr in pharmaceutical formulations. Its main function is to promote the rapid breakup and dispersion of tablets or capsules in the gastrointestinal tract, facilitating the release of active ingredients for optimal absorption. It achieves this by absorbing water and swelling, leading to the disintegration of the dosage form.

Application
Crospovidone finds extensive application in the pharmaceutical industry as a pharmaceutical excipient. It is commonly used in the formulation of tablets, capsules, and other solid oral dosage forms. Its excellent disintegrating properties make it suitable for drugs that require rapid dissolution and absorption.

In addition to its role as a disintegrant, Crospovidone can also function as a stabilizer, binder, and filler in various pharmaceutical formulations. It improves the mechanical strength of tablets, enhances drug stability, and aids in achieving uniform drug content.

Furthermore, Crospovidone is generally recognized as safe (GRAS) by regulatory authorities and has a long history of safe use in pharmaceutical products. Its versatility and compatibility with various active ingredients make it an indispensable ingredient in the formulation of solid oral dosage forms.

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Packaging & Shipping

25kgs/drum,20tons/20'container

Company Profile

Hebei Shunxing Import and Export Co.,Ltd. is a growing high-tech chemical enterprise, already is a world leading professional manufacturer and distributor for fine chemicals materials.
With the development of society, more and more people pay more attention to environmental health.In recent years, we are engaging to expand new materials field and also set up a researching team, particularly for the fields of nutrition, skin care, daily care chemical materials.

Our Advantages

1.We are very experienced with this field(more than 10 years)

2.Good after-sales service

3.100% quality guaranteed

4.We accept sample order for testing

5.Strong supply ability

6.Made in China gold members with high credit guarantee.

7.100% safe delivery door to door

FAQ

Q1 Will you provide samples to test the quality ?
A: For most products, samples can be provided free of charge for testing, but the customer is responsible for shipping the samples to the destination.

Q2 Are there any discounts?
A:Yes, we always support more favorable prices for larger quantities. The more you order, the cheaper it will be.

Q3 How do you deal with quality complaints?
A:First of all, our strict control of quality is to avoid such problems. If the quality problem is really caused by us, we will replace the product for you free of charge or refund your loss.

Q4 How to guarantee the quality of bulk goods?
A:We will sign clear quality standards and after-sales service in the contract, and carry out strict sampling and testing of the goods. The sampling process is carried out in accordance with the international proportion. If the customer has the demand, we will fully cooperate with the third-party testing company to test the goods again. Our business philosophy is integrity, the principle is to do long-term business, so we will be highly responsible for the quality of each large product of each customer.

Q5 I've already been lied to. How can I trust you?
A:We understand your concerns and are well aware of the chaos in the current market. Our company can provide you with the registration information of industry and commerce, taxation, banking, commerce bureau and customs, as well as the information of legal persons and shareholders. For internal testing and any third-party testing, you or your friends in China are also welcome to visit our company, we can also video confirm with you for every link of the order, and do anti-counterfeiting seals on the goods.

ECHEMI Editorial Reference

white to light yellow powder
Tetrabromophthalic anhydride is a pale yellow crystalline solid. (NTP, 1992)|DryPowder
Tetrabromophthalic anhydride is a pale yellow crystalline solid. (NTP, 1992)

Certificates

Basic Info

Product Name:

Tetrabromophthalic anhydride

Other Name:

1,3-Isobenzofurandione,4,5,6,7-tetrabromo-;Phthalic anhydride,tetrabromo-;4,5,6,7-Tetrabromo-1,3-isobenzofurandione;Bromphthal;Tetrabromophthalic anhydride;3,4,5,6-Tetrabromophthalic anhydride;FireMaster PHT 4;FG 4000;Saytex RB 49;Tetrabromophthalic acid anhydride;PHT 4;NSC 4874;4,5,6,7-Tetrabromoisobenzofuran-1,3-dione;Tertrabromophthalic anhydride;RB 49;72625-95-7

CAS No.:

632-79-1

Molecular Formula:

C8Br4O3

InChIKeys:

InChIKey=QHWKHLYUUZGSCW-UHFFFAOYSA-N

Molecular Weight:

463.70000

Exact Mass:

463.70

EC Number:

211-185-4

UNII:

Q8E543QKMK

NSC Number:

4874

DSSTox ID:

DTXSID6026084

Color/Form:

NEEDLES FROM ACETIC ACID-XYLENE|Pale yellow crystalline solid

HScode:

29173911

Categories:

Bulk Drug Intermediates

Characteristics

PSA:

43.37000

XLogP3:

4.04720

Appearance:

Tetrabromophthalic anhydride is a pale yellow crystalline solid. (NTP, 1992)

Density:

2.771 g/cm3

Melting Point:

279.5-280.5 °C

Boiling Point:

540.5ºC at 760 mmHg

Flash Point:

280.7ºC

Refractive Index:

1.725

Water Solubility:

hydrolysis;Insoluble in alcohol. Slightly soluble in ketone, chlorinated and aromatic solvents.

Storage Conditions:

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protect

Vapor Pressure:

0.11 mm Hg ( 180 °C)

Toxicity:

LD50 orally in Rabbit: > 10000 mg/kg LD50 dermal Rabbit > 10000 mg/kg

Experimental Properties:

68% bromine content; specific gravity=2.87; MP=270 °C /commercial product/

Air and Water Reactions:

Insoluble in water. Sensitive to moisture (NTP, 1992).

Reactive Group:

Anhydrides

Reactivity Profile:

TETRABROMOPHTHALIC ANHYDRIDE reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.

See More Tetrabromophthalic anhydride Properties 

Hazard Identification

Classification of the substance or mixture

Skin sensitization, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H317 May cause an allergic skin reaction
Prevention	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P302+P352 IF ON SKIN: Wash with plenty of water/... P333+P317 If skin irritation or rash occurs: Get medical help. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse.
Storage	none
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 Tetrabromophthalic anhydride Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
HPMC,Lithium Carbonate,Cellulose Acetate Tow,EVA resin,Terpene Resin,PP fiber

Location:
Building 4, Feicui Building, No. 366 Xinshi North Road, Qiaoxi District, Shijiazhuang City, Hebei Province

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

Average lead Time:
7 days

Total Annual Revenue:
$5 million-$10 million

Total Employees:
51-100

Year of Establishment:
2024

Hebei Shunxing Import and Export Co., Ltd. distributes and wholesales best-selling chemical products in the consumer market, enjoying a high position among consumers. The company has established long-term and stable cooperative relationships with multiple retailers and agents. The company was founded in 2012 and has a sales history of over 10 years. There are around 160 employees. Hebei Shunxing Import and Export Co., Ltd. operates a complete range of chemical products at reasonable prices. Our company has strong strength, values credit, abides by contracts, and guarantees product quality. With the characteristics of diversified business and the principle of small profits and quick sales, we have gained the trust of more and more customers. In today's increasingly transparent product prices, our company has won the trust of our customers with its thoughtful service and excellent product quality, and has established a mutually beneficial cooperative relationship with them. The company will continue to make friends from all walks of life in an honest and mutually beneficial manner, warmly welcoming friends from all walks of life。
The company's main products are HPMC, PM, MDEA, LAS60%, Tween (R) 80, EDTA,white oil and so on.Most of them belong to general organic chemicals

Inquiry History

2 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Tetrabromophthalic anhydride	5 MT	Jan 5, 2024
Saudi Arabia	Tetrabromophthalic Anhydride	20 MT	Dec 25, 2025

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632-79-1Tetrabromophthalic Anhydride rich stock!

Product Details

Seller Information

Inquiry History

Product Description

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

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