857426-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857426-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,4,2 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 857426-52:
(8*8)+(7*5)+(6*7)+(5*4)+(4*2)+(3*6)+(2*5)+(1*2)=199
199 % 10 = 9
So 857426-52-9 is a valid CAS Registry Number.
857426-52-9Relevant academic research and scientific papers
Efficient synthesis of bis(heterocyclyl)methanes
Singh, Kamaljit,Sharma, Shivali,Sharma, Amit
experimental part, p. 3491 - 3496 (2011/09/16)
The reaction of pyrrole/furan aldehyde with Grignard reagent and pyrrole/N-methyl pyrrole in sequence allows efficient synthesis of a number of meso-elaborated bis(heterocyclyl)methanes, which are otherwise difficult to obtain through a direct aldehyde co
