CAS No:150-13-0 4-Aminobenzoic acid|The aMino acid;Conivaptan hydrochkoride Impurity B;Folic acid Impurity;4-carboxyanilin

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Product Name: 4-Aminobenzoic acid
Synonyms: The aMino acid;Conivaptan hydrochkoride Impurity B;Folic acid Impurity;4-carboxyanilin
CAS No.: 150-13-0
Molecular Formula: C7H7NO2
Molecular Weight : 137.14
Specification : 98%
Place of Origin: China
Appearance :
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4-Aminobenzoic acid Chemical Properties

Melting point	187-189 °C(lit.)

Boiling point	251.96°C (rough estimate)

density	1.374 g/mL at 25 °C(lit.)

refractive index	1.5323 (estimate)

Fp	250 °C

storage temp.	2-8°C

solubility	95% ethanol: soluble5%, clear to slightly hazy, colorless to yellow

form	Crystalline Powder

pka	2.50, 4.87(at 25℃)

color	White to light yellow

PH	3.5 (5g/l, H2O, 20℃)

Water Solubility	4.7 g/L (20 ºC)

Sensitive	Air & Light Sensitive

Merck	14,423

BRN	471605

Stability:	Stable. Incompatible with strong oxidizing agents. Combustible. Sensitive to light and air. May discolour on exposure to light.

CAS DataBase Reference	150-13-0(CAS DataBase Reference)

NIST Chemistry Reference	p-Aminobenzoic acid(150-13-0)

EPA Substance Registry System	Benzoic acid, 4-amino-(150-13-0)

Hazard Codes	Xn,Xi

Risk Statements	22-36/37/38-43

Safety Statements	26-36-37/39

WGK Germany	3

RTECS	DG1400000

TSCA	Yes

HS Code	29224995

Hazardous Substances Data	150-13-0(Hazardous Substances Data)

Toxicity	LD50 in mice, rats (g/kg): 2.85, >6.0 orally (Scott, Robbins); LD50 in rabbits (g/kg): 2.0 i.v. (Richards); 1.83 orally (Cronheim)



4-Aminobenzoic acid Usage And Synthesis

Chemical Properties	White to off white crystalline powder

Uses	Widely distributed in nature as a B complex factor. Baker’s yeast contains 5 to 6 ppm, brewer’s yeast from 10 to 100 ppm. Occurs free and in ester form.

Uses	gastric acid secretion inhibitor

Definition	ChEBI: An aminobenzoic acid in which the amino group is para to the carboxy group.

Brand name	RVPaba Lipstick (ICN).

General Description	Colorless crystals that discolor on exposure to light and air.

Reactivity Profile	4-Aminobenzoic acid is incompatible with ferric salts and oxidizing agents.

Purification Methods	Purify p-aminobenzoic acid by dissolving it in 4-5% aqueous HCl at 50-60o, decolorising with charcoal and carefully precipitating it with 30% Na2CO3 to pH 3.5-4 in the presence of ascorbic acid. It can be recrystallised from water, EtOH or EtOH/water mixtures. [Beilstein 14 IV 1126.]



4-Aminobenzoic acid Preparation Products And Raw materials

Preparation Products	(2S,5R,6R)-6-[(R)-2-Amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid-->6-Quinolinylmethanol-->METHYL 4-METHYLAMINOBENZOATE-->2,6-Dichloroaniline-->Methyl 4-aminobenzoate-->N10-(TRIFLUOROACETYL)PTEROIC ACID-->4-(ETHYLTHIO)BENZOIC ACID-->4-ACETAMIDOBENZOYL CHLORIDE-->Methyl Orange-->Reactive Red Brown K-B3r-->2-Methyl-6-quinolinecarboxylic acid-->Benzocaine-->4-(Aminomethyl)benzoic acid-->4-Cyanobenzoic acid-->Disperse Yellow 126-->6-Quinolinecarboxylic acid-->2,5-BIS(4-AMINOPHENYL)-1,3,4-OXADIAZOLE-->4-CARBOXYPHENYL ISOTHIOCYANATE-->4-(1H-PYRROL-1-YL)BENZOIC ACID-->4-(METHANESULFONYLAMINO)BENZOIC ACID-->Butyl 4-aminobenzoate-->C.I.Reactive Red 11-->p-Acetylamino benzoic acid-->N-Formyl-4-(methylamino)benzoic acid-->4-Iodobenzoic acid-->4-(N-Formyl-N-methyl)aminobenzoyl chloride

Raw materials	Sodium dithionite-->p-Nitrobenzoic acid

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