42872-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42872-40-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,7 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42872-40:
(7*4)+(6*2)+(5*8)+(4*7)+(3*2)+(2*4)+(1*0)=122
122 % 10 = 2
So 42872-40-2 is a valid CAS Registry Number.
42872-40-2Relevant articles and documents
Syntheses of 2,2-Dimethyl-1-methylenepropyl Methanesulfonate and Trifluoroacetate
Hirsch, Elisabeth,Huenig, Siegfried,Reissig, Hans-Ulrich
, p. 399 - 401 (2007/10/02)
The syntheses of the title compounds 6 and 7 from tert-butylacetylene (5) and the corresponding acids are described.
