957115-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957115-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,1,1 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 957115-16:
(8*9)+(7*5)+(6*7)+(5*1)+(4*1)+(3*5)+(2*1)+(1*6)=181
181 % 10 = 1
So 957115-16-1 is a valid CAS Registry Number.
957115-16-1Relevant articles and documents
Huperzine a compound for treatment of Alzheimer's disease
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Page/Page column 3-4, (2008/06/13)
A huperzine A compound is provided. The huperzine A compound has following formula: wherein X comprises O or S, Y comprises —O—, —S—, —CH(R4)—, —C(R4)(R5)—, —C(R4)=C(R5)—, —C≡C—, —NH— or —N(R4/s