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126225

Chromotropic acid disodium salt dihydrate

technical grade, ≥78.5%, powder

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:
5808-22-0
Molecular Weight:
400.29
NACRES:
NA.21
PubChem Substance ID:
329749776
UNSPSC Code:
12352100
EC Number:
204-972-9
MDL number:
MFCD00150612
Assay:
≥78.5%
Grade:
technical grade
Form:
powder
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Product Name

Chromotropic acid disodium salt dihydrate, technical grade

grade

technical grade

Quality Segment

assay

≥78.5%

form

powder

mp

>300 °C (lit.)

functional group

sulfonic acid

SMILES string

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

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

InChI key

QUEAKWJKJBFNEG-UHFFFAOYSA-L

General description

Chromotropic acid disodium salt dihydrate is a tan colored sodium salt.

Application

Chromotropic acid disodium salt dihydrate may be employed as a chromogenic reagent for the quantification of dipyrone in various pharmaceutical preparations.

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H315,H319,H335

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 (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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