142272-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142272-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,2,7 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142272-91:
(8*1)+(7*4)+(6*2)+(5*2)+(4*7)+(3*2)+(2*9)+(1*1)=111
111 % 10 = 1
So 142272-91-1 is a valid CAS Registry Number.
142272-91-1Relevant academic research and scientific papers
Alkoxyacetylenes from alkyl 1,2-dichlorovinyl ethers
Loffler,Himbert
, p. 495 - 498 (2007/10/02)
Alkyl 1,2-dichlorovinyl ethers 4, prepared from sodium alkoxides 1 and trichloroethylene 2, react in tetrahydrofuran with two equivalents of butyllithium to afford lithium alkoxyacetylides 5. On the one hand, these acetylides react with ketones or dichlor
