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1181658-19-4

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1181658-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1181658-19-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,6,5 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1181658-19:
(9*1)+(8*1)+(7*8)+(6*1)+(5*6)+(4*5)+(3*8)+(2*1)+(1*9)=164
164 % 10 = 4
So 1181658-19-4 is a valid CAS Registry Number.

1181658-19-4Downstream Products

1181658-19-4Relevant articles and documents

Highly efficient synthesis of tri- and tetrasubstituted conjugated enynes from Bronsted acid catalyzed alkoxylation of 1-cyclopropylprop-2-yn-1-ols with alcohols

Mothe, Srinivasa Reddy,Chan, Philip Wai Hong

supporting information; experimental part, p. 5887 - 5893 (2009/12/24)

(Chemical Equation Presented) A highly efficient triflic acid catalyzed ring opening of a wide variety of 1-cyclopropyl-2-propyn-1-ols with alcohols as an efficient synthetic route to conjugated enynes is reported herein. The reaction was operationally st

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