192993-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 192993-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,2,9,9 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 192993-85:
(8*1)+(7*9)+(6*2)+(5*9)+(4*9)+(3*3)+(2*8)+(1*5)=194
194 % 10 = 4
So 192993-85-4 is a valid CAS Registry Number.
192993-85-4Relevant articles and documents
Construction of the tetracyclic core of (±)-cycloclavine and 4-amino Uhle's ketone
Chen, Jin-Quan,Mi, Yang,Shi, Zi-Fa,Cao, Xiao-Ping
, p. 3801 - 3808 (2018)
A rapid construction of the tetracyclic core (±)-2 of (±)-cycloclavine (1) was accomplished in seven steps and 24% overall yield from commercially available aldehyde 7. Key features include a domino Friedel-Crafts/nitro-Michael reaction to construct the C
