123044-28-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123044-28-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,0,4 and 4 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 123044-28:
(8*1)+(7*2)+(6*3)+(5*0)+(4*4)+(3*4)+(2*2)+(1*8)=80
80 % 10 = 0
So 123044-28-0 is a valid CAS Registry Number.
123044-28-0Relevant articles and documents
IMPROVED PREPARATION OF 3,17β-DIHYDROXYOESTRA-1,3,5(10),6-TETRAENE
Gill, Julie C.,Marples, Brian A.,Traynor, John R.
, p. 155 - 158 (2007/10/02)
The title compound is prepared in good yield via the tosylhydrazone of 3,17β-diacetoxyoestra-1,3,5(10)-triene-6-one (Shapiro reaction)
