PAB CAS: 150-13-0
| Catalog Number | XD91210 |
| Khoom npe | PAB |
| CAS | 150-13-0 ib |
| Molecular Formula | C7H7NO2 |
| Molecular Luj | 137.14 Nws |
| Cov ntaub ntawv khaws cia | Ambient |
| Harmonized tariff Code | 29224985 ib |
Khoom Specification
| Qhov tshwm sim | Dawb los yog tawm-dawb crystalline hmoov |
| Assay | 99% min |
| Poob rau ziab | <0.2% |
| Residue ntawm Ignition | <0.1% |
| Melting Range | 186-189 ° C |
| Ordinary Impurities | <1% |
| Hnyav Hlau | <0.002% |
| Volatile diazoizable tshuaj | <0.002% |
4-Aminobenzoic acid (tseem hu ua para-aminobenzoic acid lossis PABA vim tias ob pawg ua haujlwm tau txuas nrog lub nplhaib benzene hla ntawm ib leeg hauv txoj haujlwm para) yog cov organic compound nrog cov mis H2NC6H4CO2H.PABA yog cov khoom dawb, txawm tias cov qauv coj mus muag tuaj yeem tshwm grey.Nws yog me ntsis soluble hauv dej.Nws muaj lub nplhaib benzene hloov nrog cov amino thiab carboxyl pawg.Lub compound tshwm sim ntau nyob rau hauv lub ntuj ntiaj teb no.
4-Aminobenzoic acid yog ib qho nruab nrab hauv kev tsim cov folate los ntawm cov kab mob, cov nroj tsuag, thiab cov fungi.
PABA pom siv feem ntau hauv biomedical sector.Lwm yam kev siv suav nrog nws qhov kev hloov pauv mus rau tshwj xeeb azo dyes thiab crosslinking agents.PABA kuj tseem siv tau los ua cov tshuaj tua kab biodegradable, txawm hais tias nws siv tam sim no txwv vim kev hloov pauv ntawm cov tshuaj tua kab tshiab.
