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17645-35-1

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17645-35-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17645-35-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,4 and 5 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 17645-35:
(7*1)+(6*7)+(5*6)+(4*4)+(3*5)+(2*3)+(1*5)=121
121 % 10 = 1
So 17645-35-1 is a valid CAS Registry Number.

17645-35-1Relevant articles and documents

Synthesis of Two Naturally Occuring Diastereomeric Dihydroxyprolines: 2,3-trans-3,4-trans-3,4-Dihydroxy-L-proline and 2,3-cis-3,4-trans-3,4-Dihydroxy-L-proline

Kahl, Jens-Uwe,Wieland, Theodor

, p. 1445 - 1450 (2007/10/02)

Starting from 2-pyrrolecarboxylic acid the N-Boc derivative 6 is resolved into its optically active constituents by crystalisation with R(+)-1-(4-nitrophenyl)ethaneamin.The N-tosyl-3,4-dehydro-L-proline methyl ester (L-7) derived from this is converted by

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