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58432-83-0

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58432-83-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58432-83-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,4,3 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 58432-83:
(7*5)+(6*8)+(5*4)+(4*3)+(3*2)+(2*8)+(1*3)=140
140 % 10 = 0
So 58432-83-0 is a valid CAS Registry Number.

58432-83-0Relevant articles and documents

The asymmetric synthesis of aryltetralin lignans: (-)-isolariciresinol dimethyl ether and (-)-deoxysikkimotoxin

Coltart, Don M.,Charlton, James L.

, p. 88 - 94 (2007/10/03)

The total asymmetric syntheses of (-)-isolariciresinol dimethyl ether (6) and (-)-deoxysikkimotoxin (7) have been carried out, in an attempt to exploit a synthetic strategy recently developed for the synthesis of (-)-deoxypodophyllotoxin (1, R1 = -CH2-, Ar = 3,4,5-trimethoxyphenyl). In so doing, a generalized method for the synthesis of aryltetralin lignans has been developed that should be applicable to a variety of substitution patterns and stereochemistries. A one-pot, 100% regio-selective reduction-lactonization procedure has been developed for the conversion of the ester 18b to (-)-deoxysikkimotoxin, which gave 93% isolated yield in that step.

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