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4-Hydroxyphenylpyruvic acid

4-Hydroxyphenylpyruvic acid
4-Hydroxyphenylpyruvic acid structure
CAS No.
156-39-8
Chemical Name:
4-Hydroxyphenylpyruvic acid
Synonyms
Testacid;TAUTOMERASE;4-Hydrixyphenyruvic acid;Hydroxyphenylpyruvic acid;p-hydroxyphenyl-pyruvicaci;4-HYDROXYPHENYLPYRUVIC ACID;P-HYDROXYPHENYLPYRUVIC ACID;3-(4-Hydroxyphenyl)pyruvate;3-(p-hydroxyphenyl)pyruvicacid;3-(4-hydroxyphenyl)pyruvicacid
CBNumber:
CB3138601
Molecular Formula:
C9H8O4
Formula Weight:
180.16
MOL File:
156-39-8.mol

4-Hydroxyphenylpyruvic acid Properties

Melting point:
219-220 °C (dec.)(lit.)
Boiling point:
272.96°C (rough estimate)
Density 
1.2933 (rough estimate)
refractive index 
1.4500 (estimate)
storage temp. 
2-8°C
solubility 
ethanol: soluble50mg/mL
form 
crystalline
color 
off-white to tan
Water Solubility 
slightly soluble
BRN 
2691632
CAS DataBase Reference
156-39-8(CAS DataBase Reference)
NIST Chemistry Reference
Benzenepropanoic acid, 4-hydroxy-«alpha»-oxo-(156-39-8)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-37/39
WGK Germany  3
RTECS  UZ1000000
HS Code  29189900
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

4-Hydroxyphenylpyruvic acid price More Price(4)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 114286 4-Hydroxyphenylpyruvic acid 98% 156-39-8 1g $65.8 2018-11-13 Buy
Sigma-Aldrich 114286 4-Hydroxyphenylpyruvic acid 98% 156-39-8 5g $249 2018-11-13 Buy
TCI Chemical H0294 4-Hydroxyphenylpyruvic Acid >95.0%(HPLC)(T) 156-39-8 1g $60 2018-11-22 Buy
TCI Chemical H0294 4-Hydroxyphenylpyruvic Acid >95.0%(HPLC)(T) 156-39-8 5g $179 2018-11-22 Buy

4-Hydroxyphenylpyruvic acid Chemical Properties,Uses,Production

Chemical Properties

grey to orange-brown powder

Definition

ChEBI: An oxo carboxylic acid that is pyruvic acid in which one of the methyl hydrogens is substituted by a 4-hydroxyphenyl group.

Purification Methods

p-Hydroxyphenylpyruvic acid [156-39-8] M 180.2, m 220o(dec), pKEst ~2.3. Crystallise it three times from 0.1M HCl/EtOH (4:1, v/v) immediately before use [Rose & Powell Biochem J 87 541 1963], or from Et2O. The 3,4-dinitrophenylhydrazone has m 178o. [Beilstein 10 IV 3630.]

4-Hydroxyphenylpyruvic acid Preparation Products And Raw materials

Raw materials

Preparation Products


4-Hydroxyphenylpyruvic acid Suppliers

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4-Hydroxyphenylpyruvic acid Spectrum


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