41521-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41521-55-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,5,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 41521-55:
(7*4)+(6*1)+(5*5)+(4*2)+(3*1)+(2*5)+(1*5)=85
85 % 10 = 5
So 41521-55-5 is a valid CAS Registry Number.
InChI:InChI=1/C7H8N2O5S/c1-4-2-5(8)7(15(12,13)14)3-6(4)9(10)11/h2-3H,8H2,1H3,(H,12,13,14)
41521-55-5Relevant articles and documents
Process for the manufacture of nuclear-sulphonated compounds
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, (2008/06/13)
This invention relates to a process for the manufacture sulphonated compounds. Aromatically unsaturated amines are reacted with sulphamic acid or its derivatives at temperatures between 20° and 250°C in the presence of an aprotic solvent and a catalyst.