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Hot Selling 4-aminobenzoic acid aminobenzoic acid CAS 150-13-0
Para Aminobenzoic acid (also known as para-aminobenzoic acid or PABA because the number 4 carbon in the benzene ring is also known as the para position) is an organic compound with the formula H2NC6H4CO2H. PABA is a white solid, although commercial samples can appear gray. It is slightly soluble in water. It consists of a benzene ring substituted with amino and carboxyl groups. The compound occurs extensively in the natural world.
Product name:4-Aminobenzoic acid
CAS:150-13-0
MF:C7H7NO2
MW:137.14
Appearance:white crystalline powder
Loss on drying:0.15%
Residue on ignition:0.04 %
Assay:99%Min
Product Name: | Para aminobenzoic acid |
Cas number: | 150-13-0 |
Molecular formula | C7H7NO2 |
ANALYSIS ITEMS | SPECIFICATION |
Appearance | White or off white crystal or crystalline powder |
Identification | IR should comply with the reference standard spectrum UV should comply with the reference standard spectrum |
Solubility | Easily soluble in ethanol and carbonate solution, alkali solution; soluble in ether; slight soluble in water and chloroform |
Assay | 98.0%~102.0% |
Loss on drying | ≤ 0.2% |
Residue on ignition | ≤ 0.1% |
Heavy metal | ≤ 0.002% |
Related substances(HPLC) | Nitrobenzoic acid ≤ 0.2% |
Benzocaine≤ 0.2% | |
Any unspecified impurity ≤ 0.1% | |
Total impurities ≤ 0.5% | |
Aniline and P-toluidine(GC) | Aniline ≤ 10ppm |
P-toluidine ≤ 10ppm | |
Packing | Pack in paper-drums and two plastic-bags inside N.W. 25 kgs I.D.35xH51cm. |
Storage | Store in a well-closed container away from moisture, light, oxygen. |
Shelf Life | 24 months under the conditions above and in its original packaging |