178421-63-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178421-63-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,4,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 178421-63:
(8*1)+(7*7)+(6*8)+(5*4)+(4*2)+(3*1)+(2*6)+(1*3)=151
151 % 10 = 1
So 178421-63-1 is a valid CAS Registry Number.
178421-63-1Relevant articles and documents
A straightforward synthesis of L-isoserinal
Junquera, Federico,Merchan, Francisco L.,Merino, Pedro,Tejero, Tomas
, p. 7045 - 7052 (1996)
A convenient preparation of L-isoserinal 3 in six steps and 32.8% overall yield employing D-glyceraldehyde acetonide I as starting material is described. The procedure is inexpensive, easily scaled up and proceeds without observable racemization.
