126202-27-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126202-27-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,2,0 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 126202-27:
(8*1)+(7*2)+(6*6)+(5*2)+(4*0)+(3*2)+(2*2)+(1*7)=85
85 % 10 = 5
So 126202-27-5 is a valid CAS Registry Number.
126202-27-5Relevant articles and documents
SYNTHETIC STUDY TOWARDS THE TETRACYCLIC QUASSINOID SKELETON
Shing, Tony K. M.,Tang, Ying
, p. 2187 - 2194 (1990)
The optically active tetracycle (6) with two trans-fused angular methyl groups is constructed from tiglic aldehyde and (S)-carvone in 9 steps involving a stereocontrolled aldol reaction and an endo-selective intramolecular Diels-Alder (IMDA) reaction.
