58881-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58881-41-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,8,8 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 58881-41:
(7*5)+(6*8)+(5*8)+(4*8)+(3*1)+(2*4)+(1*1)=167
167 % 10 = 7
So 58881-41-7 is a valid CAS Registry Number.
58881-41-7Relevant articles and documents
(Cyanovinyl)ketenes from azafulvenones. An apparent retro-Wolff rearrangement
Qiao,Meutermans,Wong,Traubel,Wentrup
, p. 3852 - 3861 (2007/10/03)
Flash vacuum pyrolyses or pulsed pyrolysis of azole esters 1b and 20 and their carboxylic acids 1a and 19 or acid chloride 1c give five-membered ring ketenes (azafulvenones) 2 and 24 which dimerize to diketopiperazines 3 and 21 but also undergo efficient