121668-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121668-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,6 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121668-21:
(8*1)+(7*2)+(6*1)+(5*6)+(4*6)+(3*8)+(2*2)+(1*1)=111
111 % 10 = 1
So 121668-21-1 is a valid CAS Registry Number.
121668-21-1Relevant articles and documents
Radical Cyclization of Some Unsaturated Carbohydrate-Derived Acetals
Moufid, Nadira,Chapleur, Yves,Mayon, Patrick
, p. 991 - 998 (2007/10/02)
Treatment of halogeno acetals derived from deoxy-D-hexenopyranosides of erythro and threo configuration with tributyltin hydride with a radical initiator gave fused pyranofuranosides.This allowed the completely stereo and regio-specific introduction of a