74214-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74214-22-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,1 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74214-22:
(7*7)+(6*4)+(5*2)+(4*1)+(3*4)+(2*2)+(1*2)=105
105 % 10 = 5
So 74214-22-5 is a valid CAS Registry Number.
74214-22-5Relevant articles and documents
SYNTHESIS OF 14-DEOXY-14α-STROPHANTHIDIN
Kocovsky, Pavel
, p. 2998 - 3007 (2007/10/02)
A seventeen step synthesis of 3β,5-dihydroxy-19-oxo-5β,14α-card-20(22)-enolide (II, title compound) from 3β-benzoyloxy-5-pregnen-20-one (IV) is described.Characteristic features of this approach are the protection of the 19-hydroxy group as methyl ether,
