2-Aminonaphthalene-1-sulfonic acid, 98%

Name: 2-Aminonaphthalene-1-sulfonic acid, 98%
Brand: Vaqora Chemicals
SKU: VQ-010759

About 2-Aminonaphthalene-1-sulfonic acid, 98%

2-Aminonaphthalene-1-sulfonic acid is an organosulfur compound carrying the CAS registry number 81-16-3 at a purity of 98%. With the molecular formula C10H9NO3S, it has a molar mass of 223.25 g/mol. Alternative names: Tobias acid and 2-Naphthylamine-1-sulfonic acid.

In its supplied form it is white to yellow to orange powder or crystals or chunks. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 2-Aminonaphthalene-1-sulfonic acid in 25 g, 100 g and 500 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	2-Aminonaphthalene-1-sulfonic acid, 98%
Catalogue No.	VQ-010759
CAS Number	81-16-3
IUPAC name	2-aminonaphthalene-1-sulfonic acid
Molecular formula	C₁₀H₉NO₃S
Molecular weight	223.25 g/mol
Exact mass	223.0303
Purity / assay	98%
HSN code	28439019
InChIKey	GWIAAIUASRVOIA-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C=CC(=C2S(=O)(=O)O)N
PubChem CID	6670

Physical properties
Physical form	Crystalline
Appearance	White to yellow to orange powder or crystals or chunks
LogP (XLogP3)	1.8
H-bond donors / acceptors	2 / 4
TPSA	88.8 Å²
Synonyms	Tobias acid, 2-Naphthylamine-1-sulfonic acid, Kyselina tobiasova, 1-Naphthalenesulfonic acid, 2-amino-, Kyselina 2-naftylamin-1-sulfonova, 2-Naphthylamino,1-sulfonic acid, 2-Amino-naphthalenesulfonic acid, 2-aminonaphthalenesulfonic acid, 2-Aminonaphthalene-1-sulphonic acid, 2-Aminonaphthalene-1-sulfonicacid, aminonaphthalenesulfonic acid, 4-14-00-02792 (Beilstein Handbook Reference)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements: P264 + P265, P280, P305 + P351 + P338, P337 + P317

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 2-Aminonaphthalene-1-sulfonic acid, 98%?

The CAS Registry Number of 2-Aminonaphthalene-1-sulfonic acid, 98% is 81-16-3. It is also known as Tobias acid, 2-Naphthylamine-1-sulfonic acid, Kyselina tobiasova.

What is the molecular formula and molecular weight of 2-Aminonaphthalene-1-sulfonic acid, 98%?

2-Aminonaphthalene-1-sulfonic acid, 98% has the molecular formula C10H9NO3S and a molecular weight of 223.25 g/mol. Its IUPAC name is 2-aminonaphthalene-1-sulfonic acid.

Which grade and pack sizes of 2-Aminonaphthalene-1-sulfonic acid, 98% can I order?

We supply 2-Aminonaphthalene-1-sulfonic acid, 98% in (98%) grade, in 25 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2-Aminonaphthalene-1-sulfonic acid, 98%?

Yes. Every lot of 2-Aminonaphthalene-1-sulfonic acid, 98% 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 2-Aminonaphthalene-1-sulfonic acid, 98% be shipped internationally?

Yes. 2-Aminonaphthalene-1-sulfonic acid, 98% 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.