109856-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109856-01-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,8,5 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109856-01:
(8*1)+(7*0)+(6*9)+(5*8)+(4*5)+(3*6)+(2*0)+(1*1)=141
141 % 10 = 1
So 109856-01-1 is a valid CAS Registry Number.
109856-01-1Relevant articles and documents
PREPARATION OF α-ARYLSULFONYL LACTAMS
Stewart, Jon D.,Pinnick, Harold W.
, p. 213 - 216 (2007/10/02)
Lactam enolates are efficiently converted into α-arylsulfonyl lactams by aryl sulfonate esters.