1775-37-7 Usage
Chemical Properties
Off-White Solid
Uses
An intermediate in the synthesis of the Daspone metabolite.
Check Digit Verification of cas no
The CAS Registry Mumber 1775-37-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,7 and 5 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1775-37:
(6*1)+(5*7)+(4*7)+(3*5)+(2*3)+(1*7)=97
97 % 10 = 7
So 1775-37-7 is a valid CAS Registry Number.
InChI:InChI=1/C14H12N2O5S/c1-10(17)15-11-2-6-13(7-3-11)22(20,21)14-8-4-12(5-9-14)16(18)19/h2-9H,1H3,(H,15,17)
1775-37-7Relevant articles and documents
PROCESS FOR SYNTHESIS OF 4-4'-DIAMINO-DIPHENYL-SULFONE
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Page/Page column 7, (2008/06/13)
A new process for the preparation and purification of 4-4'-diamino-diphenyl-sulfone (dapsone) is described. The process described is a three step process comprising a condensation reaction with the synthesis of a thioeter intermediate and then steps of oxidation and reduction in suitable conditions in order to obtain a product with good yield and purity.
