1-Amino-8-naphthol-4,6-disulphonic acid

Name: 1-Amino-8-naphthol-4,6-disulphonic acid
Brand: Vaqora Chemicals
SKU: VQ-019813

About 1-Amino-8-naphthol-4,6-disulphonic acid

1-Amino-8-naphthol-4,6-disulphonic acid is an organosulfur compound carrying the CAS registry number 130-23-4. The compound has the formula C10H9NO7S2, corresponding to a molecular weight of 319.3 g/mol. Systematically, it is named 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid. It is also known as K acid or 1-Amino-8-naphthol-4,6-disulfonic acid.

Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 100 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	1-Amino-8-naphthol-4,6-disulphonic acid
Catalogue No.	VQ-019813
CAS Number	130-23-4
IUPAC name	4-amino-5-hydroxynaphthalene-1,7-disulfonic acid
Molecular formula	C₁₀H₉NO₇S₂
Molecular weight	319.3 g/mol
Exact mass	318.982
HSN code	2933
InChIKey	ZUQOBHTUMCEQBG-UHFFFAOYSA-N
SMILES	C1=CC(=C2C=C(C=C(C2=C1N)O)S(=O)(=O)O)S(=O)(=O)O
PubChem CID	67224

Physical properties
Physical form	Other
LogP (XLogP3)	0.2
H-bond donors / acceptors	4 / 8
TPSA	172 Å²
Synonyms	1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, 4-Amino-5-hydroxynaphthalene-1,7-disulphonic acid, 4-amino-5-hydroxy-1,7-naphthalenedisulfonic acid, K acid, 1-Amino-8-naphthol-4,6-disulfonic acid, 4-amino-5-hydroxy-naphthalene-1,7-disulfonic acid, K-Saure, 4-Amino-5-hydroxynaphthalene-1,7-disulfonicacid, l,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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 1-Amino-8-naphthol-4,6-disulphonic acid?

The CAS Registry Number of 1-Amino-8-naphthol-4,6-disulphonic acid is 130-23-4. It is also known as 1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, 4-Amino-5-hydroxynaphthalene-1,7-disulphonic acid, 4-amino-5-hydroxy-1,7-naphthalenedisulfonic acid.

What is the molecular formula and molecular weight of 1-Amino-8-naphthol-4,6-disulphonic acid?

1-Amino-8-naphthol-4,6-disulphonic acid has the molecular formula C10H9NO7S2 and a molecular weight of 319.3 g/mol. Its IUPAC name is 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid.

Which grade and pack sizes of 1-Amino-8-naphthol-4,6-disulphonic acid can I order?

We supply 1-Amino-8-naphthol-4,6-disulphonic acid, in 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1-Amino-8-naphthol-4,6-disulphonic acid?

Yes. Every lot of 1-Amino-8-naphthol-4,6-disulphonic acid 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 1-Amino-8-naphthol-4,6-disulphonic acid be shipped internationally?

Yes. 1-Amino-8-naphthol-4,6-disulphonic acid 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.