Chromotropic acid disoidum salt, GR

Name: Chromotropic acid disoidum salt, GR
Brand: Vaqora Chemicals
SKU: VQ-010838

About Chromotropic acid disoidum salt, GR

Listed under CAS 5808-22-0, Chromotropic acid disoidum salt is an organosulfur compound available from Vaqora Chemicals (AR grade) at a purity of ≥99%. The compound has the formula C10H10Na2O10S2, corresponding to a molecular weight of 400.3 g/mol. Its systematic (IUPAC) name is disodium, 4,5-dihydroxynaphthalene-2,7-disulfonate. Dihydrate. It is also known as Chromotropic acid disodium salt dihydrate or Disodium chromotropate dihydrate.

It is supplied as a powder. Reported physical data include a melting point of above 300 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Key uses span fine chemical synthesis, coordination chemistry and dyes and pigments manufacture. Our customers for this product work in pharmaceutical manufacturing, academic and industrial research and textiles and dyeing.

Standard pack sizes are 10 g, 25 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Fine chemical synthesis
Coordination chemistry
Dyes & pigments manufacture

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Chromotropic acid disoidum salt, GR
Catalogue No.	VQ-010838
CAS Number	5808-22-0
IUPAC name	disodium;4,5-dihydroxynaphthalene-2,7-disulfonate;dihydrate
Molecular formula	C₁₀H₁₀Na₂O₁₀S₂
Molecular weight	400.3 g/mol
Exact mass	399.9511
Grade	AR
Purity / assay	≥99%
HSN code	29089990
InChIKey	QUEAKWJKJBFNEG-UHFFFAOYSA-L
SMILES	C1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)[O-])O)O)S(=O)(=O)[O-].O.O.[Na+].[Na+]
PubChem CID	2723846

Physical properties
Physical form	Powder
Appearance	Powder
Melting point	>300 °C
H-bond donors / acceptors	4 / 10
TPSA	174 Å²
Synonyms	1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt, Chromotropic acid disodium salt dihydrate, Disodium chromotropate dihydrate, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, sodium salt, hydrate (1:2:2), 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium salt, dihydrate, Sodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate, Disodium 4,5-dihydroxynaphthalene-2,7-disulfonate Dihydrate, Chromotropic acid disodium dihydrate, Disodium Chromotropate Dihydrate (Technical Grade), 4.5-Dihydroxy-2.7-naphthalene disulfonic acid disodium salt, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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

Other grades of CAS 5808-22-0

Chromotropic acid disodium salt, 98%

CAS: 5808-22-0
Formula: C₁₀H₁₀Na₂O₁₀S₂
MW: 400.3 g/mol

VQ-010837

EP/Ph. Eur. / ACS / AR

Chromotropic acid disodium salt, EP/Ph. Eur., ACS, AR

CAS: 5808-22-0
Formula: C₁₀H₁₀Na₂O₁₀S₂
MW: 400.3 g/mol

VQ-047119

Synthesis

Chromotropic acid sodium salt

CAS: 5808-22-0
Formula: C₁₀H₁₀Na₂O₁₀S₂
MW: 400.3 g/mol

VQ-010839

Frequently asked questions

What is the CAS number of Chromotropic acid disoidum salt, GR?

The CAS Registry Number of Chromotropic acid disoidum salt, GR is 5808-22-0. It is also known as 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt, Chromotropic acid disodium salt dihydrate.

What is the molecular formula and molecular weight of Chromotropic acid disoidum salt, GR?

Chromotropic acid disoidum salt, GR has the molecular formula C10H10Na2O10S2 and a molecular weight of 400.3 g/mol.

Which grade and pack sizes of Chromotropic acid disoidum salt, GR can I order?

We supply Chromotropic acid disoidum salt, GR in AR (≥99%) grade, in 10 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Chromotropic acid disoidum salt, GR?

Yes. Every lot of Chromotropic acid disoidum salt, GR 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 Chromotropic acid disoidum salt, GR be shipped internationally?

Yes. Chromotropic acid disoidum salt, GR 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.