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82652-21-9

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82652-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82652-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,6,5 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82652-21:
(7*8)+(6*2)+(5*6)+(4*5)+(3*2)+(2*2)+(1*1)=129
129 % 10 = 9
So 82652-21-9 is a valid CAS Registry Number.

82652-21-9Downstream Products

82652-21-9Relevant articles and documents

ANTINEOPLASTIC AGENTS 157. QUASSIA KERSTINGII

Pettit, G. R.,Singh, S. B.,Goswami, A.,Nieman, R. A.

, p. 3349 - 3354 (2007/10/02)

The oxacanthin alkaloid components of Quassia kerstingii L. have been found to be 2-hydroxy- and 11-hydroxy-canthin-6-one (1a and 1b).Structure 1a was confirmed by results of methylation (1a->1c + 2a) and NOE studies.A selective INEPT NMR technique was employed to support unequivocally the 11-hydroxy-canthin-6-one (1b) assignment.

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