939344-47-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 939344-47-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,9,3,4 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 939344-47:
(8*9)+(7*3)+(6*9)+(5*3)+(4*4)+(3*4)+(2*4)+(1*7)=205
205 % 10 = 5
So 939344-47-5 is a valid CAS Registry Number.
939344-47-5Relevant articles and documents
Synthesis of Alkyl 5-aryl-7-methyl-1,5-dihydrotetrazolo-[1,5-a]pyrimidine- 6-carboxylates
Gein,Vladimirov,Fedorova,Kurbatova,Nosova,Krylova,Vakhrin
experimental part, p. 699 - 705 (2010/10/04)
Alkyl 5-aryl-7-methyl-1,5-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylates were obtained by melting acetoacetic acid esters with 5-aminotetrazole and aromatic aldehyde. Pleiades Publishing, Ltd., 2010.
