69754-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69754-61-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,7,5 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69754-61:
(7*6)+(6*9)+(5*7)+(4*5)+(3*4)+(2*6)+(1*1)=176
176 % 10 = 6
So 69754-61-6 is a valid CAS Registry Number.
69754-61-6Relevant articles and documents
Stereo- and regioselective metal salt-catalyzed alkynylation of 1,2-epoxides
Chini,Crotti,Favero,Macchia
, p. 6617 - 6620 (2007/10/02)
A simple, efficient, stereoselective, and highly regioselective method for the synthesis of β-hydroxyacetylenes by the direct opening of 1,2-epoxides with lithium acetylides in anhydrous THF, in the presence of metal salts, is described. This new method a