1238227-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1238227-52-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,2,2 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1238227-52:
(9*1)+(8*2)+(7*3)+(6*8)+(5*2)+(4*2)+(3*7)+(2*5)+(1*2)=145
145 % 10 = 5
So 1238227-52-5 is a valid CAS Registry Number.
1238227-52-5Relevant articles and documents
Reaction of tellurium with dichloromethane in the system hydrazine hydrate-alkali
Levanova,Grabel'Nykh,Russavskaya,Klyba,Albanov,Korchevin
, p. 2321 - 2327 (2009)
Tellurium reacts with dichloromethane in the system hydrazine hydrate-alkali substituting one chlorine atom by tellurium whereas the second chlorine atom undergoes reductive substitution by hydrogen leading to the formation of methyltellanyl derivatives.