103505-50-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103505-50-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,5,0 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 103505-50:
(8*1)+(7*0)+(6*3)+(5*5)+(4*0)+(3*5)+(2*5)+(1*0)=76
76 % 10 = 6
So 103505-50-6 is a valid CAS Registry Number.
103505-50-6Relevant articles and documents
PHOTOCHEMICAL GENERATION OF VINYLKETENES BY ELECTROCYCLIC OPENING OF CYCLOBUTENONES
Hassner, Alfred,Naidorf, Simha
, p. 6389 - 6392 (2007/10/02)
4,4-Dichloro-2-cyclobutenones 1, available by cycloaddition of acetylenes to dichloroketene, can be photolyzed in the presence of olefins or dienes to produce regiospecifically 2-vinylcyclobutanones 3-11.The photochemical reaction succeeds even in some ca