105849-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105849-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,8,4 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 105849-90:
(8*1)+(7*0)+(6*5)+(5*8)+(4*4)+(3*9)+(2*9)+(1*0)=139
139 % 10 = 9
So 105849-90-9 is a valid CAS Registry Number.
105849-90-9Relevant articles and documents
Synthesis and Properties of Tetrazolium-N-phenacylides. Part 2
Moderhack, Dietrich,Bode, Dirk-Ottfried
, p. 1483 - 1488 (1992)
Various 1-alkyl-5-methyl-1H-tetrazolium-4-phenacylides 3 (homologues of C) have been prepared, acylated and (thio)carbamoylated.The unstable ylide C has been acylated in situ.