429767
4-Aminobenzoic acid
purified by sublimation, ≥99%
Synonym(s):
PABA, Vitamin Bx, Vitamin H1
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About This Item
Linear Formula:
H2NC6H4CO2H
CAS Number:
Molecular Weight:
137.14
Beilstein:
471605
EC Number:
MDL number:
UNSPSC Code:
12352106
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.22
Quality Level
Assay
≥99%
form
solid
purified by
sublimation
reaction suitability
reaction type: solution phase peptide synthesis
mp
187-189 °C (lit.)
density
1.374 g/mL at 25 °C (lit.)
application(s)
peptide synthesis
SMILES string
Nc1ccc(cc1)C(O)=O
InChI
1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)
InChI key
ALYNCZNDIQEVRV-UHFFFAOYSA-N
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Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3
Storage Class Code
11 - Combustible Solids
WGK
WGK 2
Flash Point(F)
339.8 °F - closed cup
Flash Point(C)
171 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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L O Derewlany et al.
The Journal of pharmacology and experimental therapeutics, 269(2), 756-760 (1994-05-01)
The fetus is exposed to almost all of the substances found in the maternal circulation whether nutrients or foreign chemicals ("xenobiotics"). The main route of exposure is the placenta. The placenta is metabolically active toward xenobiotics and the nature of
Shu-Ting Chen et al.
Journal of the American Society for Mass Spectrometry, 23(8), 1408-1418 (2012-06-08)
A strategy based on negative ion electrospray ionization tandem mass spectrometry and closed-ring labeling with both 8-aminopyrene-1,3,6-trisulfonate (APTS) and p-aminobenzoic acid ethyl ester (ABEE) was developed for linkage and branch determination of high-mannose oligosaccharides. X-type cross-ring fragment ions obtained from
Lei Zhou et al.
Water research, 47(1), 153-162 (2012-10-23)
Dissolved organic matter (DOM) is an important photosensitizer for the phototransformation of organic contaminants in sunlit natural waters. This article focuses on the photolysis kinetics and mechanism of sunscreen agent p-aminobenzoic acid (PABA) in the presence of four kinds of
Yoshihiko Tashiro et al.
Blood, 119(26), 6382-6393 (2012-05-11)
Plasminogen activator inhibitor-1 (PAI-1), an endogenous inhibitor of a major fibrinolytic factor, tissue-type plasminogen activator, can both promote and inhibit angiogenesis. However, the physiologic role and the precise mechanisms underlying the angiogenic effects of PAI-1 remain unclear. In the present
Kirk E Hevener et al.
Journal of medicinal chemistry, 53(1), 166-177 (2009-11-11)
Dihydropteroate synthase (DHPS) is a key enzyme in bacterial folate synthesis and the target of the sulfonamide class of antibacterials. Resistance and toxicities associated with sulfonamides have led to a decrease in their clinical use. Compounds that bind to the
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