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81860-94-8

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81860-94-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81860-94-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,6 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81860-94:
(7*8)+(6*1)+(5*8)+(4*6)+(3*0)+(2*9)+(1*4)=148
148 % 10 = 8
So 81860-94-8 is a valid CAS Registry Number.

81860-94-8Relevant articles and documents

Syntheses of Peptide Alkaloids, VII. - Amino Acids and Peptides, XXXVIII. - Total Synthesis of the 10,11-Dihydrozizyphines A and B

Schmidt, Ulrich,Boekens, Hilmar,Lieberknecht, Albrecht,Griesser, Helmut

, p. 1459 - 1467 (2007/10/02)

The 10,11-dihydrozizyphines A (13a) and B (15a) were synthesized.The cyclopeptide ring closure reactions were accomplished by catalytic hydrogenation of the linear ω-Z-amino acid pentafluorophenyl ester 8a.

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