sales@klarchem.com +90 530 315 00 65 Mon–Sat: 09:00 – 18:00
Get a Quote

2,5-Dihydroxybenzoic acid

Home/ Merck & Sigma/ CAS 490-79-9
2,5-Dihydroxybenzoic acid molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 8 grades and pack sizes of 2,5-Dihydroxybenzoic acid (CAS 490-79-9). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS490-79-9
Molecular formulaC7H6O4
Molecular weight154.12 g/mol
IUPAC name2,5-dihydroxybenzoic acid
Synonymsgentisic acid · Benzoic acid, 2,5-dihydroxy- · 5-Hydroxysalicylic acid · Gensigen · Gensigon · Hydroquinonecarboxylic acid
Safety & Hazards (GHS) Warning
Irritant Irritant
  • H302 Harmful if swallowed
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma 2,5-DIHYDROXYBENZOIC ACID 78069-25MG
85707-10MG-F
85707-1G-F
85707-250MG-F		 Request Quote
Sigma 2,5-Dihydroxybenzoic acid 39319-10X10MG-F Request Quote
Sigma 2,5-Dihydroxybenzoic acid, 98% 149357-100G
149357-10G
149357-25G		 Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.