Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulf… 3888-44-6

Name: Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate
Brand: Vaqora Chemicals
SKU: VQ-052265

About Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate

Vaqora Chemicals supplies Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate, an organosulfur compound registered under CAS number 3888-44-6. The compound has the formula C10H7NaO8S2, corresponding to a molecular weight of 342.3 g/mol. It is also known as Chromotropic acid sodium salt or Chromotropic acid, monosodium salt.

Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 100 mg, 250 mg, 1 g and 5 g packs, Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate is dispatched with a Certificate of Analysis (COA) to destinations worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate
Catalogue No.	VQ-052265
CAS Number	3888-44-6
IUPAC name	sodium 4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate
Molecular formula	C₁₀H₇NaO₈S₂
Molecular weight	342.3 g/mol
Exact mass	341.948
InChIKey	UPYOFRGSTDARPV-UHFFFAOYSA-M
SMILES	C1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)O)O)O)S(=O)(=O)[O-].[Na+]
PubChem CID	23678880

Physical properties
Physical form	Other
H-bond donors / acceptors	3 / 8
TPSA	169 Å²
Synonyms	Sodium hydrogen 4,5-dihydroxynaphthalene-2,7-disulphonate, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, sodium salt (1:1), Chromotropic acid sodium salt, Chromotropic acid, monosodium salt, Monosodium mono(4,5-dihydroxynaphthalene-2,7-disulfonate)

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

Frequently asked questions

What is the CAS number of Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate?

The CAS Registry Number of Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate is 3888-44-6. It is also known as Sodium hydrogen 4,5-dihydroxynaphthalene-2,7-disulphonate, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, sodium salt (1:1), Chromotropic acid sodium salt.

What is the molecular formula and molecular weight of Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate?

Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate has the molecular formula C10H7NaO8S2 and a molecular weight of 342.3 g/mol. Its IUPAC name is sodium 4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate.

Which grade and pack sizes of Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate can I order?

We supply Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate, 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 Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate?

Yes. Every lot of Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate 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 Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate be shipped internationally?

Yes. Sodium4,5-dihydroxy-7-sulfonaphthalene-2-sulfonate 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.