31917-92-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31917-92-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,9,1 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31917-92:
(7*3)+(6*1)+(5*9)+(4*1)+(3*7)+(2*9)+(1*2)=117
117 % 10 = 7
So 31917-92-7 is a valid CAS Registry Number.
31917-92-7Relevant articles and documents
N-nitrosodiphenylamine as an alternative nitrosating agent for indoles
Cardellini,Greci,Stipa
, p. 677 - 682 (2007/10/02)
N-nitrosodiphenylamine reacts in the presence of catalytic amounts of trichloroacetic acid with indoles forming the corresponding nitroso and isonitroso derivatives in good yields.