4-Aminobenzoic acid

4-Aminobenzoic acid

Product Details:


Product Description

LC344 4-Aminobenzoic acid
suitable for use as excipient exp USP


Order number Packaging Quantity Price 
AC27344 Plastic bottle 1 kg Inquire
AC27344 Double PE Sack 20 kg Inquire


Product information
Grade USP
Synonyms PABA
Hill Formula C7H7NO2
Chemical formula NH2C6H4COOH
HS Code 2922 49 85
EC number 205-753-0
Molar mass 137.13 g/mol
CAS number 150-13-0


Chemical and physical data
Solubility 4.7 g/l (20 °C)
Melting point 186 - 189 °C
Molar mass 137.13 g/mol
Density 1.38 g/cm3
Bulk density 200 kg/m3
pH value 3.5 (5 g/l, H2O, 20 °C)


Safety information according to GHS
Precautionary Statement(s) P260: Do not breathe dust.
Storage class 10 - 13 Other liquids and solids

WGK 1 slightly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information

S Phrase S 22
Do not breathe dust.


Toxicological data

LD 50 oral LD50 rat 6000 mg/kg



Assay (acidimetric; calculated on dried substance) 98.5 - 101.5 %
Melting range
- lower value

≥ 186 °C
- upper value ≤ 189 °C
Heavy metals (as Pb) ≤ 0.002 %
Volatile diazotizable substances (as p-toluidine) ≤ 0.002 %
Ordinary impurities (TLC) passes test
Sulfated ash ≤ 0.1 %
Loss on drying (105 °C) ≤ 0.2 %
Conforms USP


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