7-Amino-4-hydroxy-2-naphthalenesulphonic acid… 87-02-5

About 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90%

7-Amino-4-hydroxy-2-naphthalenesulphonic acid is an organosulfur compound carrying the CAS registry number 87-02-5 at a purity of 90%. With the molecular formula C10H9NO4S, it has a molar mass of 239.25 g/mol. The IUPAC name is 7-amino-4-hydroxynaphthalene-2-sulfonic acid. Common synonyms include 6-Amino-1-naphthol-3-sulphonic acid and J acid.

It is supplied as a white to grey and faint beige to beige powder. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span dyes and pigments manufacture and organic synthesis. Typical end-use sectors are pharmaceutical manufacturing, academic and industrial research and textiles and dyeing.

We offer 7-Amino-4-hydroxy-2-naphthalenesulphonic acid in 25 g, 100 g, 1 kg and 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Dyes & pigments manufacture
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90%
Catalogue No.	VQ-010807
CAS Number	87-02-5
IUPAC name	7-amino-4-hydroxynaphthalene-2-sulfonic acid
Molecular formula	C₁₀H₉NO₄S
Molecular weight	239.25 g/mol
Exact mass	239.0252
Purity / assay	90%
HSN code	29420090
InChIKey	KYARBIJYVGJZLB-UHFFFAOYSA-N
SMILES	C1=CC2=C(C=C(C=C2C=C1N)S(=O)(=O)O)O
PubChem CID	6868

Physical properties
Physical form	Powder
Appearance	White to grey and faint beige to beige powder
LogP (XLogP3)	-0.9
H-bond donors / acceptors	3 / 5
TPSA	109 Å²
Synonyms	6-Amino-1-naphthol-3-sulphonic acid, J acid, Isogamma acid, 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-, 1-Hydroxy-6-amino-3-naphthalenesulfonic acid, 2-Amino-5-naphthol-7-sulfonic Acid, I acid, 6-Amino-1-naphthol-3-sulfonic acid, Kyselina I, Aminonaphthol sulfonic acid J, 7-Amino-4-hydroxynaphthalene-2-sulphonic acid, Kyselina 2-amino-5-naftol-7-sulfonova

Safety & hazard information (GHS)

Corrosive

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements: P260, P264, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90%?

The CAS Registry Number of 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% is 87-02-5. It is also known as 6-Amino-1-naphthol-3-sulphonic acid, J acid, Isogamma acid.

What is the molecular formula and molecular weight of 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90%?

7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% has the molecular formula C10H9NO4S and a molecular weight of 239.25 g/mol. Its IUPAC name is 7-amino-4-hydroxynaphthalene-2-sulfonic acid.

Which grade and pack sizes of 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% can I order?

We supply 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% in (90%) grade, in 25 g, 100 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90%?

Yes. Every lot of 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% be shipped internationally?

Yes. 7-Amino-4-hydroxy-2-naphthalenesulphonic acid, ≥90% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.