148875-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 148875-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,8,7 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 148875-57:
(8*1)+(7*4)+(6*8)+(5*8)+(4*7)+(3*5)+(2*5)+(1*7)=184
184 % 10 = 4
So 148875-57-4 is a valid CAS Registry Number.
148875-57-4Relevant articles and documents
Preparation of 3-Acyl-3-cyclobutene-1,2-diones and Some Related Monoacetals
Liebeskind, Lanny S.,Yu, Marvin S.,Fengl, Richard W.
, p. 3543 - 3549 (2007/10/02)
3-(Tri-n-butylstannyl)-3-cyclobutene-1,2-diones and 4-methyl-3-(tri-n-butylstannyl)-3-cyclobutene-1,2-dione 2-ethylene acetal participate in palladium/copper-cocatalyzed cross-coupling with acyl halides and in palladium-catalyzed carbonylative cross-coupl
