Amines & Amides Available — Bulk Only

Para-Aminobenzoic Acid (PABA)

CAS 150-13-0 · Formula C7H7NO2 · MW 137.14 g/mol

A para-substituted aminobenzoic acid used as a building block for dyes, polyurethane crosslinking and UV-absorbing formulations. Industrial uses include service as an intermediate in the manufacture of dyes (notably azo dyes) and pharmaceuticals, a cross-linking agent for polyurethane resins, a feed additive, and a UV-absorbing agent.

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HS Code
2922.49
At a Glance
Material Family
Amines & Amides
Record Type
Pure compound
Primary Role
UV Protection · Synthesis Intermediate
Solubility
6110 mg/L (at 30 °C)
Functional Roles
PABA
LIGHT STABILIZERUV ABSORBER
Industries Served
Applications & Use Cases
  • Dye intermediate: building block for azo and other dyes
  • Synthesis intermediate: intermediate in pharmaceutical manufacture
  • Polyurethane crosslinker: cross-linking agent for polyurethane resins
  • UV absorber: UV-absorbing agent in personal-care and coating formulations
  • Feed additive: additive in animal feed
Physical Properties
Melting Point
370 to 189 °C
Density
1.37
Solubility
6110 mg/L (at 30 °C)
Vapor Pressure
0.000278
pH
pH (0.5% solution): 3.5
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2922 . 49
Chapter 29
Organic chemicals
Heading 29.22
Internationally harmonized (WCO HS)
Subheading 2922.49
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
150-13-0
Molecular Formula
C7H7NO2
Molecular Weight
137.14 g/mol
IUPAC Name
4-aminobenzoic acid
INCI Name
PABA
PubChem CID
InChI Key
ALYNCZNDIQEVRV-UHFFFAOYSA-N
Synonyms & Trade Names
4-aminobenzoic acid p-aminobenzoic acid PABA para-aminobenzoic acid Vitamin BX p-Carboxyaniline Sunbrella 4-Carboxyaniline Pabacyd Paraminol Amben Benzoic acid, 4-amino- p-Carboxyphenylamine Pabafilm Pabamine 1-Amino-4-carboxybenzene Paranate Romavit Vitamin H'
Full Description

Para-aminobenzoic acid (PABA, 4-aminobenzoic acid, CAS 150-13-0; C7H7NO2) is an aromatic amino-acid. Industrial uses include service as an intermediate in the manufacture of dyes (notably azo dyes) and pharmaceuticals, a cross-linking agent for polyurethane resins, a feed additive, and a UV-absorbing agent.

Frequently Asked Questions

What is para-aminobenzoic acid used for?

Para-aminobenzoic acid (PABA) is used industrially as an intermediate in the manufacture of dyes (notably azo dyes) and in pharmaceutical synthesis. It also serves as a cross-linking agent for polyurethane resins, a UV-absorbing agent in coating and personal-care formulations, and an additive in animal feed.

What is the common name for para-aminobenzoic acid?

It is commonly abbreviated PABA and also referred to as 4-aminobenzoic acid. The CAS number is 150-13-0 and the molecular formula is C7H7NO2.

What grade does RawSource supply para-aminobenzoic acid in?

RawSource supplies para-aminobenzoic acid as a USP-grade powder. CAS 150-13-0, an aromatic amino-acid in the amines and amides family. Certificate of Analysis (CoA) and Safety Data Sheet (SDS) are provided with each lot.

What is the HS code for para-aminobenzoic acid?

Para-aminobenzoic acid classifies under HS code 2922.49 (oxygen-function amino-compounds). Confirm the destination-country tariff line with your customs broker prior to import.

What is the cost of bulk para-aminobenzoic acid?

Bulk pricing depends on volume, packaging and destination. Request a current quote from RawSource with your target quantity and ship-to location for landed pricing on drum or bagged USP powder.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.