Chromotropic acid disodium salt dihydrate

Fluorogenic reagent for analytical the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti or CH2O (formaldehyde). Quantitative determination of formaldehyde is based on the specific formation of a red coloration (peaking at 580 nm wavelength) when chromotropic acid in 75% sulfuric acid reacts with formaldehyde. May be employed as a chromogenic reagent for the quantification of dipyrone in various pharmaceutical preparations.

Catalog Number CDX-C0231-G250
Alternative Name(s) 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt; 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt; Mordant Brown 7 Dihydrate; Chromogen C Dihydrate
Research Area Biochemicals, Immunology
Molecular Formula (HO)2C10H4(SO3Na)2 . 2H2O
CAS# 5808-22-0
Purity >99%
Inchi 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
SMILES OC1=C(C(O)=CC(S(=O)([O-])=O)=C2)C2=CC(S(=O)([O-])=O)=C1.O.O.[Na+].[Na+]
Size 250 g
Supplier Page http://www.adipogen.com/cdx-c0231/chromotropic-acid-disodium-salt-dihydrate.html