1228246-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1228246-22-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,2,4 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1228246-22:
(9*1)+(8*2)+(7*2)+(6*8)+(5*2)+(4*4)+(3*6)+(2*2)+(1*2)=137
137 % 10 = 7
So 1228246-22-7 is a valid CAS Registry Number.
1228246-22-7Relevant articles and documents
Highly regioselective lithiation of inter-ring carbon of bis(thien-2yl)methane: a general meso-elaboration protocol
Singh, Kamaljit,Sharma, Amit
, p. 3682 - 3686 (2010)
Bis(thien-2yl)methane is regioselectively lithiated at the inter-ring methylene carbon using dimsyl anion in THF at 0 °C; quenching with appropriate electrophile furnishes meso-elaborated derivatives, exclusively with synthetic advantage.
