871505-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871505-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,5,0 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 871505-26:
(8*8)+(7*7)+(6*1)+(5*5)+(4*0)+(3*5)+(2*2)+(1*6)=169
169 % 10 = 9
So 871505-26-9 is a valid CAS Registry Number.
871505-26-9Relevant articles and documents
Synthesis of 2-chloromethyl-5-aryl-, 2-chloromethyl-5-(5-methyl-2-furyl)-, and 2-chloromethyl-5-(1,5-dimethyl-2-pyrrolyl)-1,3,4-oxadiazoles from tetrazole derivatives
Baranov,Tsypin,Malin,Laskin
, p. 773 - 775 (2007/10/03)
Acetylation of 5-aryltetrazoles, 5-(5-methyl-2-furyl)tetrazole, and 5-(1,5-dimethyl-2-pyrrolyl)tetrazole with chloroacetyl chloride was studied.