3-Amino-4-hydroxybenzoic acid CAS NO.1571-72-8

Product Name:    3-Amino-4-hydroxybenzoic acid
Synonyms:    2-amino-4-carboxyphenol;TIMTEC-BB SBB006740;3-amino-4-hydroxybenzenecarboxylic acid;3-Amino-4-hydroxybenzoic acid,98%;2-Amino-4-carboxyphenol, 5-Carboxy-2-hydroxyaniline;3-AMino-4-hydroxybenzoic acid, 98% 25GR;3-AMino-4-hydroxybenzoic acid, 98% 5GR;BENZOIC ACID, 3-AMINO-4-HYDROXY-
CAS:    1571-72-8
MF:    C7H7NO3
MW:    153.14
EINECS:    216-390-2  
Mol File:    1571-72-8.mol
 

3-Amino-4-hydroxybenzoic acid Chemical Properties
Melting point     208 °C (dec.) (lit.)
Boiling point     276.03°C (rough estimate)
density     1.3585 (rough estimate)
refractive index     1.5500 (estimate)
storage temp.     Keep in dark place,Inert atmosphere,Room temperature
solubility     Soluble in solvents.
pka    9.06±0.18(Predicted)
form     Crystalline Powder
color     Beige-gray to brown
λmax    308nm(H2O (pH 11))(lit.)
Sensitive     Light Sensitive
BRN     972238
CAS DataBase Reference    1571-72-8(CAS DataBase Reference)
Safety Information
Hazard Codes     Xn,Xi
Risk Statements     22-36/37/38
Safety Statements     26-36
WGK Germany     3
Hazard Note     Irritant
HazardClass     IRRITANT, AIR SENSITIVE, LIGHT SENSITIVE
HS Code     29225090
MSDS Information
Provider    Language
3-Amino-4-hydroxybenzoic acid    English
SigmaAldrich    English
ACROS    English
ALFA    English
3-Amino-4-hydroxybenzoic acid Usage And Synthesis
Chemical Properties    beige-grey to brown crystalline powder
Definition    ChEBI: A monohydroxybenzoic acid that is 4-hydroxybenzoic acid carrying an additional amino substitutent at position 3.
Synthesis Reference(s)    The Journal of Organic Chemistry, 54, p. 3740, 1989 DOI: 10.1021/jo00276a044
3-Amino-4-hydroxybenzoic acid Preparation Products And Raw materials
Raw materials    Benzoic acid, 4-hydroxy-3-(2-phenyldiazenyl)--->3-(Acetylamino)-4-hydroxybenzoic acid-->4-Hydroxy-3-nitrobenzoic acid-->ETHYL 4-HYDROXY-3-NITROBENZOATE-->ETHYL 3-AMINO-4-HYDROXYBENZOATE-->Butylparaben-->Methyl 3-nitro-4-hydroxybenzoate-->Methyl 3-amino-4-hydroxybenzoate-->4-Hydroxybenzoic acid-->4-Chloro-3-nitrobenzoic acid
Preparation Products    LCP polybenzoxazole liquid crystal-->2-OXO-2,3-DIHYDRO-BENZOOXAZOLE-5-CARBOXYLIC ACID-->3,5-DIIODO-4-HYDROXYBENZOIC ACID-->METHYL 1,3-BENZOXAZOLE-5-CARBOXYLATE-->5-Carboxy-8-hydroxyquinoline-->METHYL 4-HYDROXY-3-IODOBENZOATE-->Sulfanilamide