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1339232-59-5

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1339232-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1339232-59-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,9,2,3 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1339232-59:
(9*1)+(8*3)+(7*3)+(6*9)+(5*2)+(4*3)+(3*2)+(2*5)+(1*9)=155
155 % 10 = 5
So 1339232-59-5 is a valid CAS Registry Number.

1339232-59-5Relevant articles and documents

Synthesis of the ABH rings of ecteinascidin 597 using a connective Pummerer-type cyclisation

Smith, Laura H. S.,Nguyen, Trung Thanh,Sneddon, Helen F.,Procter, David J.

, p. 10821 - 10823 (2011/11/05)

A connective Pummerer-type cyclisation involving a cysteine derivative and an N-benzyl glyoxamide 3 has been applied in an asymmetric synthesis of the protected ABH rings 2 of the antitumour and antimicrobial natural product ecteinascidin 597.

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