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Merck
CN

213276

Chromotropic acid disodium salt dihydrate

ACS reagent

Synonym(s):

1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt

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About This Item

Linear Formula:
(HO)2C10H4(SO3Na)2·2H2O
CAS Number:
Molecular Weight:
400.29
UNSPSC Code:
12352100
PubChem Substance ID:
EC Number:
204-972-9
MDL number:
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InChI key

QUEAKWJKJBFNEG-UHFFFAOYSA-L

InChI

1S/C10H8O8S2.2Na.2H2O/c11-8-3-6(19(13,14)15)1-5-2-7(20(16,17)18)4-9(12)10(5)8;;;;/h1-4,11-12H,(H,13,14,15)(H,16,17,18);;;2*1H2/q;2*+1;;/p-2

SMILES string

O.O.[Na+].[Na+].Oc1cc(cc2cc(cc(O)c12)S([O-])(=O)=O)S([O-])(=O)=O

grade

ACS reagent

mp

>300 °C (lit.)

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Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Spot-test identification and rapid quantitative sequential analysis of dipyrone.
Tubino M, et al.
Ecletica Quimica , 35(10), 41-46 (2010)
Rapid Spot Test Analysis for the Detection of Dipyrone in Pharmaceutical Preparations.
Pezza L, et al.
Analytical Sciences, 16(3), 313-315 (2000)

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