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  7. 4,5-Dihydroxynaphthalene-2,7-disulfonic Acid, Disodium Salt Dihydrate, 98%

4,5-Dihydroxynaphthalene-2,7-disulfonic Acid, Disodium Salt Dihydrate, 98%

Catalog No. p-3736234
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Glass bottle
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Catalog No. Quantity Packaging
AC155190250 25 g Glass bottle
AC155191000 100 g Glass bottle
AC155195000 500 g Glass bottle
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Catalog No. AC155190250 Supplier Thermo Scientific Chemicals Supplier No. 155190250
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Description

4,5-Dihydroxynaphthalene-2,7-disulfonic acid, disodium salt dihydrate, 98%, C10H6Na2O8S2.2H2O, CAS Number-5808-22-0 | CAS: 5808-22-0 | C10H6O8S2 | 318.27 g/mol

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers

CAS 5808-22-0
Molecular Formula C10H10Na2O10S2
Molecular Weight (g/mol) 400.28
MDL Number MFCD00150612
InChI Key QUEAKWJKJBFNEG-UHFFFAOYSA-L
Synonym chromotropic acid sodium salt, 4,5-dihydroxy-2,7-naphthalenedisulfonate, di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid, 4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g
PubChem CID 124202444
IUPAC Name 2,7-disodium 4,5-dihydroxynaphthalene-2,7-disulfonate dihydrate
SMILES O.O.OC1=CC(=CC2=CC(=CC(O)=C12)S(=O)(=O)O[Na])S(=O)(=O)O[Na]

Specifications

CAS Min % 97.5
CAS Max % 100.0
Melting Point >300.0°C
Color Beige-Gray to White or Brown
Infrared Spectrum Authentic
Assay Percent Range 98%
Packaging Glass bottle
Quantity 25 g
Beilstein 11, 307
Merck Index 15, 2245
Solubility Information Solubility in water: very soluble
Formula Weight 400.28
Percent Purity 98%
Insoluble Matter 0.02% max. (in water)
Physical Form Powder
Chemical Name or Material 4,5-Dihydroxynaphthalene-2,7-disulfonic acid, disodium salt dihydrate
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Safety and Handling

Hazard Category GHS Signal Word: Warning
Hazard Statement GHS H Statement
May cause respiratory irritation.
Causes skin irritation.
Causes serious eye irritation.
Precautionary Statement GHS P Statement
Wear protective gloves/protective clothing/eye protection/face protection.
If skin irritation occurs: Get medical advice/attention.
If eye irritation persists: Get medical advice/attention.
Avoid breathing dust/fume/

RUO – Research Use Only