104290-62-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104290-62-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,2,9 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 104290-62:
(8*1)+(7*0)+(6*4)+(5*2)+(4*9)+(3*0)+(2*6)+(1*2)=92
92 % 10 = 2
So 104290-62-2 is a valid CAS Registry Number.
104290-62-2Relevant articles and documents
RING OPENING AND RING ENLARGEMENT OF A CYCLOPROPENE CARBOXYLIC ACID
Schmitz, E.,Sonnenschein, H.,Kuban, R. J.
, p. 4911 - 4914 (2007/10/02)
3,3-Dimethyl-2-phenyl-cyclopropenecarboxylic acid 4 is prepared, starting with chlorophenyldiazirine 1.With acids 4 yields the open chain carboxylic acids 5, 6 and 7.Thionylchloride leads to the cyclobutenone 10, DCC to the acid anhydrides 11 and 13.
