257936-70-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257936-70-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,3 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 257936-70:
(8*2)+(7*5)+(6*7)+(5*9)+(4*3)+(3*6)+(2*7)+(1*0)=182
182 % 10 = 2
So 257936-70-2 is a valid CAS Registry Number.
257936-70-2Relevant articles and documents
β-Acarbose. VIII the synthesis of some N-linked carba-oligosacchandes
Stick, Robert V.,Tilbrook, D. Matthew G.,Williams, Spencer J.
, p. 895 - 904 (1999)
Two carbohydrate triflates have been used to alkylate a 1-epivalienamine derivative to give small amounts of the desired secondary amines, in addition to amounts of the products of elimination. Deprotection of the secondary amines afforded a carba-disacch