Acid Red 9 - AR , CAS No.8003-59-6

CAS: 8003-59-6 Cat. No.: A304673 Formula: C₂₀H₁₃N₂NaO₄S Molecular Weight: 400.38 PubChem CID: 135666569

GRADE & PURITY AR

Synonyms

sodium;6-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate|sodium (E)-6-((2-hydroxynaphthalen-1-yl)diazenyl)naphthalene-1-sulfonate|Acid Red 9 ,|Silk Scarlet|1-Naphthalenesulfonic acid, 6-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt, mixt. with 7-((2-hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonic acid monosodium salt|6-((2-Hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonic acid monosodium salt, mixt. with 7-((2-hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonic acid monosodium salt

Storage

Room temperature

Shipped In

Normal

Specifications

Synonyms

sodium;6-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate | sodium (E)-6-((2-hydroxynaphthalen-1-yl)diazenyl)naphthalene-1-sulfonate | Acid Red 9 , | Silk Scarlet | 1-Naphthalenesulfonic acid, 6-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt, mixt. with 7-((2-hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonic acid monosodium Show more

Specifications & Purity

AR

Storage

Room temperature

Shipped In

Normal

Grade

AR

Names and Identifiers

Pubchem Sid

504773411

Pubchem Sid Url

https://pubchem.ncbi.nlm.nih.gov/substance/504773411

Canonical Smiles

C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC4=C(C=C3)C(=CC=C4)S(=O)(=O)[O-])O.[Na+]

IUPAC Name

sodium;6-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate

InChIKey

GETWKXDZCSCODM-UHFFFAOYSA-M

INCHI

1S/C20H14N2O4S.Na/c23-18-11-8-13-4-1-2-6-17(13)20(18)22-21-15-9-10-16-14(12-15)5-3-7-19(16)27(24,25)26;/h1-12,23H,(H,24,25,26);/q;+1/p-1

Isomeric SMILES

C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC4=C(C=C3)C(=CC=C4)S(=O)(=O)[O-])O.[Na+]

PubChem CID

135666569

Molecular Weight

400.38

Frequently Asked Questions

What does AR mean?

AR is a defined analytical purity tier suitable for general analytical and reagent applications. It specifies a minimum assay percentage, controlled limits on common impurities (water, heavy metals, residue on ignition), and lot-to-lot consistency. AR is one of several purity tiers — choose based on the sensitivity and regulatory requirements of your method.

How should this product be stored?

Store at room temperature.

How is this product shipped?

This product ships under standard ambient conditions. No temperature-controlled packaging is required.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 8003-59-6, the molecular formula is C20H13N2NaO4S, and the molecular weight is 400.38 g/mol. InChIKey GETWKXDZCSCODM-UHFFFAOYSA-M.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.