220689-78-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220689-78-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,6,8 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 220689-78:
(8*2)+(7*2)+(6*0)+(5*6)+(4*8)+(3*9)+(2*7)+(1*8)=141
141 % 10 = 1
So 220689-78-1 is a valid CAS Registry Number.
220689-78-1Relevant articles and documents
An access to glycoconjugate libraries through multicomponent reactions
Lockhoff, Oswald
, p. 3436 - 3439 (1998)
Four-component reactions: The Ugi reaction of four suitably functionalized carbohydrate derivatives (as a per-O-benzylated amine, an aldehyde, a carboxylic acid, and an isocyanide) allow the effective assembly of diverse compound libraries. The complex gl