20823-30-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20823-30-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,2 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20823-30:
(7*2)+(6*0)+(5*8)+(4*2)+(3*3)+(2*3)+(1*0)=77
77 % 10 = 7
So 20823-30-7 is a valid CAS Registry Number.
20823-30-7Relevant articles and documents
A convenient synthesis of 11-aza-C-homoestranes
Back,Chau,Parvez
, p. 162 - 164 (1995)
17β-Acetoxy-3-methoxy-11-aza-C-homoestra-1,3,5(10),8(9)-tetraen-12-on e (1) and 17β-acetoxy-3-methoxy-11-aza-C-homoestra-1,3,5(10),6,8(9)-pentaen-12- one (2) were prepared from estrone.
