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Atomfair Aminobenzoate Potassium KPABA, PABA-K, Potassium PABA C7H6KNO2 CAS 138-84-1

Aminobenzoate Potassium (CAS: 138-84-1) is a high-purity, pharmaceutical-grade monopotassium salt of 4-aminobenzoic acid (PABA), widely recognized for its applications in research, dermatology, and nutritional science. With the molecular formula C7H6KNO2, this compound exhibits excellent solubility in water, making it ideal for formulations requiring bioavailability. It is rigorously tested for identity, potency, and purity (≥98%) via HPLC, NMR, and elemental analysis to meet USP/EP standards. Packaged in amber glass bottles under inert gas to ensure stability, it is suitable for analytical reference standards, cosmetic studies (e.g., UV filters), and biochemical research involving folate metabolism or oxidative stress.

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Description

Aminobenzoate Potassium (CAS: 138-84-1) is a high-purity, pharmaceutical-grade monopotassium salt of 4-aminobenzoic acid (PABA), widely recognized for its applications in research, dermatology, and nutritional science. With the molecular formula C7H6KNO2, this compound exhibits excellent solubility in water, making it ideal for formulations requiring bioavailability. It is rigorously tested for identity, potency, and purity (≥98%) via HPLC, NMR, and elemental analysis to meet USP/EP standards. Packaged in amber glass bottles under inert gas to ensure stability, it is suitable for analytical reference standards, cosmetic studies (e.g., UV filters), and biochemical research involving folate metabolism or oxidative stress.

Properties

  • CAS Number: 138-84-1
  • Complexity: 132
  • IUPAC Name: potassium;4-aminobenzoate
  • InChI: InChI=1S/C7H7NO2.K/c8-6-3-1-5(2-4-6)7(9)10;/h1-4H,8H2,(H,9,10);/q;+1/p-1
  • InChI Key: MZKKJVZIFIQOPP-UHFFFAOYSA-M
  • Exact Mass: 175.00355992
  • Molecular Formula: C7H6KNO2
  • Molecular Weight: 175.23
  • SMILES: C1=CC(=CC=C1C(=O)[O-])N.[K+]
  • Topological: 66.2
  • Monoisotopic Mass: 175.00355992
  • Physical Description: Solid;
  • Solubility: 24.1 [ug/mL]
  • Synonyms: 138-84-1, potassium p-aminobenzoate, Aminobenzoate potassium, Potassium 4-aminobenzoate, Benzoic acid, 4-amino-, monopotassium salt, potassium para-aminobenzoate, Aminobenzoate potassium [USP], UNII-41KZS5432U, Potaba (TN), POTASSIUM PABA, EINECS 205-338-4, Aminobenzoate potassium (USP), kpaba, DTXSID8059683, 4-aminobenzoic acid, potassium salt, POTASSIUM AMINOBENZOATE [MI], NSC 755861, NSC-755861, POTASSIUM AMINOBENZOATE [MART.], AMINOBENZOATE POTASSIUM [USP-RS], POTASSIUM AMINOBENZOATE [WHO-DD], POTASSIUM PARA-AMINOBENZOATE [VANDF], AMINOBENZOATE POTASSIUM [USP MONOGRAPH], 4-Aminobenzoate, Potassium, POTASSIUM AMINOBENZOATE (MART.), AMINOBENZOATE POTASSIUM (USP-RS), 4 Aminobenzoic Acid, Potassium Salt, AMINOBENZOATE POTASSIUM (USP MONOGRAPH), Potassium 4aminobenzoate, Aminobenzoate, Potassium, Potassium 4 Aminobenzoate, DTXCID2034463, Benzoic acid, 4amino, monopotassium salt, 4Aminobenzoic acid potassium salt (1:1), Benzoic acid, 4amino, potassium salt (1:1), 205-338-4, einecs 215-312-4, potaba, 4-Aminobenzoic acid potassium salt, 4-Aminobenzoate potassium salt, potassium;4-aminobenzoate, Benzoic acid, 4-amino-, potassium salt (1:1), 41KZS5432U, 4-Aminobenzoic acid (monopotassium salt), PABA monopotassium salt;Vitamin Bx monopotassium salt;Vitamin H1 monopotassium salt, potassium,4-aminobenzoate, MFCD00064911, MLS001334047, SCHEMBL269265, SPECTRUM1500113, CHEMBL1564391, 4-Aminobenzoic acid (potassium), HMS502H05, HMS1920C05, HMS2091I05, HMS2231H13, HMS3369H15, CCG-38921, AKOS003051478, AKOS015966234, NCGC00094583-01, NCGC00094583-02, AS-15795, SMR000875315, DB-042449, CS-0013318, NS00079359, ST50331766, ST50410322, D02906, E77938, EN300-1265482, Q27258445, F1905-6982

Aminobenzoate Potassium is primarily used as a precursor in synthesizing folic acid analogs and as a UV-absorbing agent in sunscreen formulations. In dermatology, it supports studies on skin photoprotection and collagen synthesis. Researchers also employ it as a buffer component in cell culture media or as a substrate for enzymatic assays investigating PABA-dependent pathways.

Safety and Hazards

GHS Hazard Statements

  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2 (100%)
  • STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

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Certain molecules may be protected by active patents or regulatory restrictions.

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  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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