143538-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143538-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,3 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 143538-75:
(8*1)+(7*4)+(6*3)+(5*5)+(4*3)+(3*8)+(2*7)+(1*5)=134
134 % 10 = 4
So 143538-75-4 is a valid CAS Registry Number.
143538-75-4Relevant academic research and scientific papers
Hydrazidine; VI: Synthesis of N1,N2-dimethylhydrazidines and 1,2-dihydro-1,2-dimethyl-1,2,4,5-tetrazines
Neunhoeffer,Karafiat,Vey
, p. 637 - 638 (2007/10/02)
Starting with (thiobenzoylthio)acetic acids 1 N1,N2-dimethylbenzohydrazide hydrazones 5 were prepared. Cyclization of 5 with trimethyl orthobenzoate affords 1,2-dihydro-1,2-dimethyl-1,2,4,5-tetrazines 6.
