Chromotropic acid disodium salt, 98%

Name: Chromotropic acid disodium salt, 98%
Brand: Vaqora Chemicals
SKU: VQ-010837

About Chromotropic acid disodium salt, 98%

Vaqora Chemicals supplies Chromotropic acid disodium salt, an organosulfur compound registered under CAS number 5808-22-0 at a purity of 98%. The compound has the formula C10H10Na2O10S2, corresponding to a molecular weight of 400.3 g/mol. Systematically, it is named disodium, 4,5-dihydroxynaphthalene-2,7-disulfonate. Dihydrate. Alternative names: Chromotropic acid disodium salt dihydrate and Disodium chromotropate dihydrate.

The material typically appears as a beige-brown to brown powder. Literature values give a melting point of above 300 °C. Its solubility is described as soluble in water. 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.

It is commonly used for analytical determinations and agrochemical formulations. It is used across pharmaceutical manufacturing, academic and industrial research and agrochemical production.

We offer Chromotropic acid disodium salt in 10 g, 25 g, 1 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Analytical determinations
Agrochemical formulations

Industries

Specifications & identifiers

Chemical identifiers
Product name	Chromotropic acid disodium salt, 98%
Catalogue No.	VQ-010837
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
Purity / assay	98%
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	Beige-brown to brown powder
Melting point	>300 °C
Solubility	Soluble in water
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

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

AR

Chromotropic acid disoidum salt, GR

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

VQ-010838

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 disodium salt, 98%?

The CAS Registry Number of Chromotropic acid disodium salt, 98% 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 disodium salt, 98%?

Chromotropic acid disodium salt, 98% has the molecular formula C10H10Na2O10S2 and a molecular weight of 400.3 g/mol.

Which grade and pack sizes of Chromotropic acid disodium salt, 98% can I order?

We supply Chromotropic acid disodium salt, 98% in (98%) grade, in 10 g, 25 g, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Chromotropic acid disodium salt, 98%?

Yes. Every lot of Chromotropic acid disodium salt, 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 Chromotropic acid disodium salt, 98% be shipped internationally?

Yes. Chromotropic acid disodium salt, 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.