10503-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10503-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,5,0 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 10503-80:
(7*1)+(6*0)+(5*5)+(4*0)+(3*3)+(2*8)+(1*0)=57
57 % 10 = 7
So 10503-80-7 is a valid CAS Registry Number.
10503-80-7Relevant academic research and scientific papers
Tubul, Arlette,Santelli, Maurice
, p. 191 - 192 (1988)
Acylation of cyclohexene by cyclohexenyl- or cyclopentenyl-acetyl chloride gave des-A-11-oxo or des-D-7-oxo steroids.