156215-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156215-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,1 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156215-83:
(8*1)+(7*5)+(6*6)+(5*2)+(4*1)+(3*5)+(2*8)+(1*3)=127
127 % 10 = 7
So 156215-83-7 is a valid CAS Registry Number.
156215-83-7Relevant articles and documents
Lithiation of 2-chloromethylpyridine: Synthesis of 2-oxiranyl pyridines
Florio,Troisi
, p. 3175 - 3178 (1994)
Deprotonation of 2-chloromethylpyridine 1a with lithium diisopropylamide (LDA) in tetrahydrofuran (THF) at -78°C gives a red solution of 2-pyridiylchloromethyllithium 1b, which reacts with carbonyl compounds furnishing oxiranes 2.
