92-27-3 Usage
General Description
6,7-Dihydroxynaphthalene-2-sulfonic acid (DHNSA) is a chemical compound composed of a naphthalene ring bound to two hydroxyl groups and a sulfonic acid group. This organic compound falls under the category of naphthalene sulfonic acids, and displays properties typical of an aromatic sulfonic acid. It has applications in various fields such as in organic synthesis or in pharmaceuticals, where it can function as intermediate for other chemicals. The presence of the sulfonic acid group makes the compound soluble in water, and its two hydroxyl groups enable it to act as a dihydroxy naphthalene derivative, which are often used in dye production.
Check Digit Verification of cas no
The CAS Registry Mumber 92-27-3 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 92-27:
(4*9)+(3*2)+(2*2)+(1*7)=53
53 % 10 = 3
So 92-27-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H8O5S/c11-9-4-6-1-2-8(16(13,14)15)3-7(6)5-10(9)12/h1-5,11-12H,(H,13,14,15)
92-27-3Relevant articles and documents
Polymer electrolyte and process for producing the same
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, (2008/06/13)
A polymer electrolyte having, in a main chain, a structural unit represented by the following formula (1):-[Ar1-(SO2-N-(X+)-SO2-Ar2)m-SO2-N-(X+)-SO2-Ar1-O]- wherein Ar1 and Ar2 independently represent a divalent aromatic groups, m represents an integer of 0 to 3, and X+ represents an ion selected from hydrogen ion, an alkali metal ion and ammonium ion, which is excellent in proton conductivity, thermal resistance and strength. The polymer electrolyte is soluble in solvents and has excellent film forming property and recycling efficiency.
