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1380243-43-5

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1380243-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1380243-43-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,0,2,4 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1380243-43:
(9*1)+(8*3)+(7*8)+(6*0)+(5*2)+(4*4)+(3*3)+(2*4)+(1*3)=135
135 % 10 = 5
So 1380243-43-5 is a valid CAS Registry Number.

1380243-43-5Relevant articles and documents

INTERMEDIATES OF SITAGLIPTIN AND PREPARATION PROCESS THEREOF

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Paragraph 0235-0238, (2013/11/05)

Disclosed are intermediates of Sitagliptin, a preparation process thereof, and a process for synthesizing Sitagliptin using these intermediates. Sitagliptin is synthesized by using chiral amino compounds as a raw material, without having to build a chiral center with a chiral asymmetric catalytic hydrogenation, and high-pressure hydrogenation is avoided.

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