177213-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177213-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,2,1 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 177213-28:
(8*1)+(7*7)+(6*7)+(5*2)+(4*1)+(3*3)+(2*2)+(1*8)=134
134 % 10 = 4
So 177213-28-4 is a valid CAS Registry Number.
177213-28-4Relevant articles and documents
Alkylation of oxiranyl anions
Mori, Yuji,Yaegashi, Keisuke,Iwase, Kazutaka,Yamamori, Yuki,Furukawa, Hiroshi
, p. 2605 - 2608 (1996)
Oxiranyllithium compounds generated from epoxy sulfones by deprotonation with n-butyllithium in THF at -100°C react with α-alkoxy alkyl triflates to give new substituted epoxides in high yields.