74561-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74561-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,6 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74561-57:
(7*7)+(6*4)+(5*5)+(4*6)+(3*1)+(2*5)+(1*7)=142
142 % 10 = 2
So 74561-57-2 is a valid CAS Registry Number.
74561-57-2Relevant articles and documents
Syntheses of Seleno Estrogens
Arunachalam, Thangavel,Caspi, Eliahu
, p. 3415 - 3420 (2007/10/02)
The syntheses of phenylseleno and methylseleno analogues of estradiol are described.