4-Hydroxy-Benzoicaci; 4-Hydroxybenzoic Acid; CAS 99-96-7

• CAS No.: 99-96-7
• Formula: C7h6o3
• EINECS: 202-804-9
• Appearance: Crystal
• Type: Pharmaceutical Intermediates
• Quality: Refined
• Colour: White
• Samples: Available
• Purity: 99%
• Certificates: ISO9001/SGS
• Package: 1kg/5kg/10kg/25kg
• Stocks: in Stock
• Lead Time: 5-7 Working Days
• Shelf Life: 2-3 Years
• Site Audit: Available
• Transport: Air/Express/Sea
• MOQ: 10g
• Transport Package: Drum/Bottle/Bags
• Trademark: Yunbang
• Origin: China

Product Description

4-hydroxy-benzoicaci;4-Hydroxybenzoic acid;CAS 99-96-7
 

4-Hydroxybenzoic acid Chemical Properties

Melting point	213-217 °C (lit.)
Boiling point	213.5°C (rough estimate)
density	1,46 g/cm^3
FEMA	3986 | 4-HYDROXYBENZOIC ACID
refractive index	1.4600 (estimate)
Fp	199 °C
storage temp.	Store below +30°C.
solubility	methano l: soluble5%, clear to slightly hazy, colorless to faintly yellow
pka	4.48(at 19ºC)
form	Crystalline Powder
color	White to ivory
PH	3.3 (1g/l, H2O, 20ºC)
Water Solubility	5 g/L (20 ºC)
JECFA Number	957
Merck	14,4812
BRN	970950
InChIKey	FJKROLUGYXJWQN-UHFFFAOYSA-N
CAS DataBase Reference	99-96-7(CAS DataBase Reference)
NIST Chemistry Reference	Benzoic acid, 4-hydroxy-(99-96-7)
EPA Substance Registry System	p-Hydroxybenzoic acid (99-96-7)

Safety Information

Hazard Codes	Xi
Risk Statements	36-36/37/38
Safety Statements	26-37/39-36
WGK Germany	1
RTECS	DH1925000
Autoignition Temperature	>250 °C
TSCA	Yes
HS Code	29182930
Hazardous Substances Data	99-96-7(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: > 5000 mg/kg

4-Hydroxybenzoic acid Usage And Synthesis

Chemical Properties	WHITE TO BEIGE CRYSTALLINE POWDER
Chemical Properties	4-Hydroxybenzoic acid is an odorless white crystalline astringent powder. In pure form, it imparts a sweetish taste at first, which quickly becomes acrid and disagreeable
Occurrence	Reportedly present in apple juice, black currant, cheese, beer, grape brandy, rum, sherry, wines, cocoa, peanut, soybean and wort.
Uses	p-Hydroxybenzoic acid is of significant commercial importance. The most familiar application is the use of several of its esters as preservatives, known as parabens. Also of interest is the use in liquid crystal polymer applications.
Uses	Acetylsalicylic Acid Impurity A
Uses	In organic. syntheses; intermediate for dyes, fungicides.
Definition	ChEBI: A monohydroxybenzoic acid that is benzoic acid carrying a hydroxy substituent at C-4 of the benzene ring.
Preparation	Prepared from p-bromopheno l or p-hydroxybenzaldehyde, or from saponification of methyl salicylate, a major component of oil of wintergreen.
Aroma threshold values	Detection at 5 ppm (water)
Synthesis Reference(s)	Journal of the American Chemical Society, 106, p. 174, 1984 DOI: 10.1021/ja00313a035 The Journal of Organic Chemistry, 29, p. 3459, 1964 DOI: 10.1021/jo01035a003
Purification Methods	Crystallise the hydroxyacid from water. [Beilstein 10 IV 345.]

 

Company Informations:

Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.
The company adheres to the corporate tenet of "We do not produce medicines, but help pharmaceutical companies make good medicines".

We can provide customers with customized processing, research and development services;
We can develop high-end Pharmaceutical and chemical products with high technical difficulties,high barriers and unique production processes;
We can provide 100 grams Grade, kilograms, and hundred kilograms of raw material pharmaceutical intermediates and other products.
We can perform -100°C to 300°C reaction.

R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of Pharmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.