1640995-86-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1640995-86-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,0,9,9 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1640995-86:
(9*1)+(8*6)+(7*4)+(6*0)+(5*9)+(4*9)+(3*5)+(2*8)+(1*6)=203
203 % 10 = 3
So 1640995-86-3 is a valid CAS Registry Number.
1640995-86-3Relevant articles and documents
Intramolecular aminocyanation of alkenes by N-CN bond cleavage
Pan, Zhongda,Pound, Sarah M.,Rondla, Naveen R.,Douglas, Christopher J.
, p. 5170 - 5174 (2014/05/20)
A metal-free, Lewis acid promoted intramolecular aminocyanation of alkenes was developed. B(C6F5)3 activates N-sulfonyl cyanamides, thus leading to a formal cleavage of the N-CN bonds in conjunction with vicinal addition o