p-aminobenzoic acid 15N CAS 183803-47-6

Purity 97%+In StockPharmaceutical Standards
CAS No.183803-47-6
Molecular FormulaC7H7[15N]O2
Molecular Weight138.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

p-aminobenzoic acid 15N CAS 183803-47-6 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

p-aminobenzoic acid 15N (CAS 183803-47-6), molecular formula C7H7[15N]O2 and molecular weight 138.13 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, p-aminobenzoic acid 15N is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 138.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H7[15N]O2
Molecular Weight138.13 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2009
Nitrogen Atoms1

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