34546-32-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34546-32-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,5,4 and 6 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 34546-32:
(7*3)+(6*4)+(5*5)+(4*4)+(3*6)+(2*3)+(1*2)=112
112 % 10 = 2
So 34546-32-2 is a valid CAS Registry Number.
34546-32-2Relevant academic research and scientific papers
Synthesis of new sulfonyl chlorides on the basis of substituted diphenyl sulfones
Yablonskii,Tarasov,Moskvichev
, p. 60 - 63 (2007/10/03)
-Sulfonation of substituted diphenyl sulfones with excess chlorosulfonic acid at 100°C yields as a rule the corresponding bis-sulfonyl chlorides. The reaction with an equimolar amount of 20% oleum yields products of sulfonation of only one benzene ring.
