143268-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143268-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,6 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143268-59:
(8*1)+(7*4)+(6*3)+(5*2)+(4*6)+(3*8)+(2*5)+(1*9)=131
131 % 10 = 1
So 143268-59-1 is a valid CAS Registry Number.
InChI:InChI=1/C11H13NO/c1-8(2)11-12(3)9-6-4-5-7-10(9)13-11/h4-7H,1-3H3
143268-59-1Relevant articles and documents
Synthesis, NMR Spectra, and Photoelectron Spectra of Cyclic Ketene N,X-Acetals (2-Alkylidene-N-heterocycles)
Quast, Helmut,Ach, Manfred,Kindermann, Markus K.,Rademacher, Paul,Schindler, Michael
, p. 503 - 516 (2007/10/02)
Deprotonation by sodium hydride of the N-methyl-2-alkylazolium salts 10c, 14-16, and 18 and of the perimidinium salt 20 as well affords the corresponding ketene N,X-acetals 1c, 3-5, 7 and 8 as air-sensitive distillable oils or low-melting crystals.The α-c