134891-14-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134891-14-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,9 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134891-14:
(8*1)+(7*3)+(6*4)+(5*8)+(4*9)+(3*1)+(2*1)+(1*4)=138
138 % 10 = 8
So 134891-14-8 is a valid CAS Registry Number.
134891-14-8Relevant articles and documents
Concerning the formations of α-iodoenones
Bovonsombat, Pakorn,Angara, Geetha J.,Mc Nelis, Edward
, p. 6787 - 6790 (1994)
The formations of α-iodoenones from secondary alkynols with NIS/HTIB (cat.), tertiary alkynols with I2/PDC and enones with I2/pyridine have been compared. In the latter two reactions the PDC and the pyridine have been found to be catalytic.
