1151240-93-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1151240-93-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,1,2,4 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1151240-93:
(9*1)+(8*1)+(7*5)+(6*1)+(5*2)+(4*4)+(3*0)+(2*9)+(1*3)=105
105 % 10 = 5
So 1151240-93-5 is a valid CAS Registry Number.
1151240-93-5Relevant articles and documents
PREPARATION OF SITAGLIPTIN INTERMEDIATE
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Page/Page column 15-16, (2009/06/27)
Intermediate compounds in the synthesis of Sitagliptin, 3-amino-4-(2,4,5- trifluorophenyl)but-2-enoic acid alkyl ester, and amino protected-3-amino-4-(2,4,5- trifluorophenyl)but-2-enoic acid alkyl ester, and the stereoselective reduction of these compound to give Synthon I, or the amino-protected Synthon I, are provided.
