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1221900-99-7

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1221900-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1221900-99-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,9,0 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1221900-99:
(9*1)+(8*2)+(7*2)+(6*1)+(5*9)+(4*0)+(3*0)+(2*9)+(1*9)=117
117 % 10 = 7
So 1221900-99-7 is a valid CAS Registry Number.

1221900-99-7Downstream Products

1221900-99-7Relevant articles and documents

A novel approach towards the preparation of functionalized alkyne derivatives via ArS-mediated AdE reaction of cobaltcarbonyl complexed conjugated enynes

Tumanov, Vasily V.,Zatonsky, Georgy V.,Smit, William A.

, p. 2156 - 2161 (2010)

A unified protocol of three-component coupling of arenesulfenyl chloride, dicobalthexacarbonyl complexed conjugated enynes, and nucleophiles of π-donor type is applied for the synthesis of functionalized alkynes.

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