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442663-29-8

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442663-29-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442663-29-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,6 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 442663-29:
(8*4)+(7*4)+(6*2)+(5*6)+(4*6)+(3*3)+(2*2)+(1*9)=148
148 % 10 = 8
So 442663-29-8 is a valid CAS Registry Number.

442663-29-8Downstream Products

442663-29-8Relevant articles and documents

PROCESS FOR TOTAL SYNTHESIS OF ECTEINASCIDINS AND INTERMEDIATES THEREFOR

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Page 23, (2008/06/13)

An intermediate compound for total synthesis of ecteinascidins comprising, a compound represented by general formula 2 having thioether group at C4 site, and the substituent R2 of N12 site is trichloroethoxicarbonyl (Troc) to which various substituents can be introduced by mild condition, further having 10 members ring structure which can be converted to a ring of other numbered members.

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