Naphthionic acid

Name: Naphthionic acid
Brand: Vaqora Chemicals
SKU: VQ-049678

About Naphthionic acid

Listed under CAS 84-86-6, Naphthionic acid is an organosulfur compound available from Vaqora Chemicals. With the molecular formula C10H9NO3S, it has a molar mass of 223.25 g/mol. Its systematic (IUPAC) name is 4-aminonaphthalene-1-sulfonic acid. Alternative names: Piria's acid and 1-Naphthylamine-4-sulfonic acid.

Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Naphthionic acid in 100 mg, 250 mg, 1 g and 5 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Naphthionic acid
Catalogue No.	VQ-049678
CAS Number	84-86-6
IUPAC name	4-aminonaphthalene-1-sulfonic acid
Molecular formula	C₁₀H₉NO₃S
Molecular weight	223.25 g/mol
Exact mass	223.0303
HSN code	2933
InChIKey	NRZRRZAVMCAKEP-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)N
PubChem CID	6790

Physical properties
Physical form	Other
LogP (XLogP3)	1.2
H-bond donors / acceptors	2 / 4
TPSA	88.8 Å²
Synonyms	Piria's acid, 1-Naphthylamine-4-sulfonic acid, 1,4-Naphthionic acid, 1-Amino-4-sulfonaphthalene, 1-Naphthalenesulfonic acid, 4-amino-, alpha-Naphthylamine-p-sulfonic acid, alpha-Naphthylamine-4-sulfonic acid, 4-aminonaphthalenesulfonic acid, 1-Aminonaphthalene-4-sulfonic acid, USAF M-5, Kyselina nafthionova, Piria-Saeure

Safety & hazard information (GHS)

Corrosive

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H318Causes serious eye damage

Precautionary statements: P260, P264, P264 + P265, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, 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 Naphthionic acid?

The CAS Registry Number of Naphthionic acid is 84-86-6. It is also known as Piria's acid, 1-Naphthylamine-4-sulfonic acid, 1,4-Naphthionic acid.

What is the molecular formula and molecular weight of Naphthionic acid?

Naphthionic acid has the molecular formula C10H9NO3S and a molecular weight of 223.25 g/mol. Its IUPAC name is 4-aminonaphthalene-1-sulfonic acid.

Which grade and pack sizes of Naphthionic acid can I order?

We supply Naphthionic acid, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naphthionic acid?

Yes. Every lot of Naphthionic 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 Naphthionic acid be shipped internationally?

Yes. Naphthionic 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.