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4-Hydroxybenzoic acid

4-Hydroxybenzoic acid
4-Hydroxybenzoic acid structure
CAS No.
99-96-7
Chemical Name:
4-Hydroxybenzoic acid
Synonyms
PHBA;LR-68;NSC 4961;FEMA 3986;4-hydroxy;Paraben-acid;4-Carboxyphenol;p-salicylicacid;p-Carboxyphenol;p-hydroxybenzoic
CBNumber:
CB1412080
Molecular Formula:
C7H6O3
Formula Weight:
138.12
MOL File:
99-96-7.mol

4-Hydroxybenzoic acid Properties

Melting point:
213-217 °C (lit.)
Boiling point:
213.5°C (rough estimate)
Density 
1,46 g/cm3
refractive index 
1.4600 (estimate)
FEMA 
3986 | 4-HYDROXYBENZOIC ACID
Flash point:
199 °C
storage temp. 
Store below +30°C.
solubility 
methanol: soluble5%, clear to slightly hazy, colorless to faintly yellow
pka
4.48(at 19℃)
form 
Crystalline Powder
color 
White to ivory
PH
3.3 (1g/l, H2O, 20℃)
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)
Substances Added to Food (formerly EAFUS)
4-HYDROXYBENZOIC ACID
EWG's Food Scores
3
FDA UNII
JG8Z55Y12H
NIST Chemistry Reference
Benzoic acid, 4-hydroxy-(99-96-7)
EPA Substance Registry System
p-Hydroxybenzoic acid (99-96-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H402-H318-H335-H315-H319
Precautionary statements  P261-P280a-P304+P340-P405-P501a-P280-P305+P351+P338+P310-P305+P351+P338-P264-P273-P305+P351+P338+P337+P313-P501
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
Toxicity LD50 orally in Rabbit: > 5000 mg/kg

4-Hydroxybenzoic acid price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 240141 4-Hydroxybenzoic acid ReagentPlus , ≥99% 99-96-7 50g $30.3 2021-03-22 Buy
Sigma-Aldrich 1609013 Salicylic acid Related Compound A United States Pharmacopeia (USP) Reference Standard 99-96-7 100mg $1260 2021-03-22 Buy
TCI Chemical H0207 4-Hydroxybenzoic Acid >99.0%(GC)(T) 99-96-7 25g $16 2021-03-22 Buy
TCI Chemical H0207 4-Hydroxybenzoic Acid >99.0%(GC)(T) 99-96-7 100g $20 2021-03-22 Buy
Alfa Aesar A13700 4-Hydroxybenzoic acid, 99% 99-96-7 250g $20 2021-03-22 Buy

4-Hydroxybenzoic acid Chemical Properties,Uses,Production

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-bromophenol 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.]

4-Hydroxybenzoic acid Preparation Products And Raw materials

Raw materials

Preparation Products


4-Hydroxybenzoic acid Suppliers

Global( 579)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shanghai Yingrui Biopharma Co., Ltd.
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+86-571-85864795 sales@capotchem.com China 20010 60
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+8618033787409
0311-89850048 zhuangkai@zk-chem.com China 299 58

View Lastest Price from 4-Hydroxybenzoic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-10-25 4-Hydroxybenzoic acid
99-96-7
US $0.00 / Kg/Drum 1KG 99% 2000mt/year Jinan Finer Chemical Co., Ltd
2021-10-22 4-Hydroxybenzoic acid
99-96-7
US $50.00 / KG 1KG 99% 20 tons Hanhong Medicine Technology (Hubei) Co., Ltd.
2021-10-20 4-Hydroxybenzoic acid
99-96-7
US $10.00 / KG 1KG 99% 20 tons Wuhan wingroup Pharmaceutical Co., Ltd

4-Hydroxybenzoic acid Spectrum


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