56956-47-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56956-47-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,9,5 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56956-47:
(7*5)+(6*6)+(5*9)+(4*5)+(3*6)+(2*4)+(1*7)=169
169 % 10 = 9
So 56956-47-9 is a valid CAS Registry Number.
56956-47-9Relevant articles and documents
Prop-2-ynyl- and Propadienyl-lithium Reagents. Regiocontrolled Synthesis of Allenic Compounds
Huynh, Chanh,Linstrumelle, Gerard
, p. 1133 - 1134 (2007/10/02)
Direct proof for the rearrangement of the prop-2-ynyl-lithium (2) into the propadienyl-lithium (4) is provided by the formation of the 1,3-disubstituted allenic compounds (7).