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1187772-42-4

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1187772-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1187772-42-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,7,7 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1187772-42:
(9*1)+(8*1)+(7*8)+(6*7)+(5*7)+(4*7)+(3*2)+(2*4)+(1*2)=194
194 % 10 = 4
So 1187772-42-4 is a valid CAS Registry Number.

1187772-42-4Downstream Products

1187772-42-4Relevant articles and documents

Highly efficient and versatile pd-catalyzed direct alkynylation of both azoles and azolines

Kim, Seok Hwan,Chang, Sukbok

supporting information; experimental part, p. 1868 - 1871 (2010/09/05)

A highly efficient and versatile Pd-catalyzed direct alkynylation reaction of heterocycles with 1-bromoalkynes was developed. The substrate scope of the reaction was very broad to include not only azoles but also azolines for the first time, thus offering an important advance in the direct functionalization of heterocycles.

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