172271-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172271-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,2,7 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 172271-57:
(8*1)+(7*7)+(6*2)+(5*2)+(4*7)+(3*1)+(2*5)+(1*7)=127
127 % 10 = 7
So 172271-57-7 is a valid CAS Registry Number.
172271-57-7Relevant articles and documents
Syntheses of [5,8-13C2]- and [1,12-13C2]spermine using potassium [13C]cyanide as the 13C source
Samejima,Matsushima,Niitsu,Beppu,Frydman
, p. 2001 - 2004 (2007/10/03)
[5,8-13C2]Spermine and [1,12-13C2]spermine were prepared using [13C]KCN as the source of the label. By reaction of the latter with 1,2- dibromoethane and ethylene chlorohydrin, the corresponding [1,4-
