251291-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251291-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,2,9 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 251291-81:
(8*2)+(7*5)+(6*1)+(5*2)+(4*9)+(3*1)+(2*8)+(1*1)=123
123 % 10 = 3
So 251291-81-3 is a valid CAS Registry Number.
251291-81-3Relevant academic research and scientific papers
COMPOUNDS COMPRISING POLYENE CHAIN STRUCTURE AND PROCESSES FOR PREPARING THE SAME
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Page 9, (2010/02/05)
A process for preparing beta-carotene, represented by Formula 3staring from a sulfone compound of Formula B
