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5808-22-0 - 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, 98% - Chromotropic acid disodium salt dihydrate - A17297 - Alfa Aesar

A17297 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, 98%

CAS Number
5808-22-0
Synonyms
Chromotropic acid disodium salt dihydrate

Size Price ($) Quantity Availability
10g 26.37
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4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, 98%

MDL
MFCD00150612
EINECS
204-972-9

Chemical Properties

Formula
C10H6Na2O8S2•2H2O
Formula Weight
400.29 (364.26anhy)
Melting point
>300°
Solubility
Soluble in water.

Applications

It is employed as a pharmaceutical intermediate and in the preparation of fine chemicals and medicines.

Notes

Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.

Literature References

Kelly Alessandra Sakiara, et al. Spectrophotometric determination of dipyrone in pharmaceutical preparations by using chromotropic acid.Il Farmaco.,1999,54(9), 629-635.

E Fagnani, et al. Chromotropic acid-formaldehyde reaction in strongly acidic media. The role of dissolved oxygen and replacement of concentrated sulphuric acid.Talanta.,2003,60/span>(1), 171-176.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,2241
Beilstein
3647189
Harmonized Tariff Code
2908.99
TSCA
Yes

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