531494-30-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 531494-30-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,1,4,9 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 531494-30:
(8*5)+(7*3)+(6*1)+(5*4)+(4*9)+(3*4)+(2*3)+(1*0)=141
141 % 10 = 1
So 531494-30-1 is a valid CAS Registry Number.
531494-30-1Relevant 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.