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1383545-87-6

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1383545-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1383545-87-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,3,5,4 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1383545-87:
(9*1)+(8*3)+(7*8)+(6*3)+(5*5)+(4*4)+(3*5)+(2*8)+(1*7)=186
186 % 10 = 6
So 1383545-87-6 is a valid CAS Registry Number.

1383545-87-6Relevant articles and documents

Lewis acid-catalyzed intramolecular [3+2] cycloaddition of cyclopropane 1,1-diesters with alkynes for the synthesis of cyclopenta[c]chromene skeletons

Xia, Xiao-Feng,Song, Xian-Rong,Liu, Xue-Yuan,Liang, Yong-Min

, p. 1538 - 1541 (2012/08/08)

An efficient method to construct cyclopenta[c]chromene skeletons by Lewis acid-catalyzed intramolecular [3+2] cycloaddition of cyclopropane 1,1-diesters with alkynes is presented. Two new fused cycles can be formed in one step in moderate to excellent yie

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