Chromotropic acid disodium salt dihydrate

CHF 68.00
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CDX-C0231-G05050 gCHF 68.00
CDX-C0231-G250250 gCHF 244.00
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Product Details
Synonyms 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
Product Type Chemical
Formula (HO)2C10H4(SO3Na)2 . 2H2O
MW 364.3 . 36.0
CAS 5808-22-0
Source/Host Chemicals Synthetic.
Purity Chemicals ≥99% (T)
Appearance Off-white solid.
Solubility Soluble in water.
Identity Determined by 1H-NMR.
Declaration Manufactured by Chemodex.
Other Product Data

Click here for Original Manufacturer Product Datasheet
Our product description may differ slightly from the original manufacturers product datasheet.

Smiles OC1=C(C(O)=CC(S(=O)([O-])=O)=C2)C2=CC(S(=O)([O-])=O)=C1.O.O.[Na+].[Na+]
Shipping and Handling
Shipping AMBIENT
Short Term Storage +20°C
Long Term Storage +20°C
Handling Advice Protect from light and moisture.
Use/Stability Stable for at least 2 years after receipt when stored at +20°C.
MSDS Download PDF
Product Specification Sheet
Datasheet Download PDF

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.

Product References

(1) D. Letourneau & N. Krog; Plant Physiol. 27, 822 (1952) | (2) H.B. He, et al.; Talanta 38, 1159 (1991) | (3) B.-L. Poh, et al.; Tetrahedr. Lett. 30, 1005 (1989) | (4) B.K. Pal & K. Baksi; Mikrochim. Acta 108, 275 (1992) | (5) Z. Zhao, et al.; Microchem. J. 58, 1 (1998) | (6) L. Pezza, et al.; Anal. Sci. 16, 313 (2000) | (7) F. Gasparini, et al.; J. Braz. Chem. Soc. 19, 1531 (2008)

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