56561-13-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56561-13-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,6 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 56561-13:
(7*5)+(6*6)+(5*5)+(4*6)+(3*1)+(2*1)+(1*3)=128
128 % 10 = 8
So 56561-13-8 is a valid CAS Registry Number.
56561-13-8Relevant articles and documents
CONVERSION OF α ACETYLENIC ALCOHOLS INTO αβ UNSATURATED ALDEHYDES
Julia, Marc,Lefebvre, Christian
, p. 189 - 192 (2007/10/02)
Very mild conditions have been found for the efficient regioselective addition of phenylthiol to ethynyl carbinols.A biphasic aqueous acid hydrolysis then leads to αβ-unsaturated aldehydes.The Meyer-Schuster rearrangement is thus brought about in two steps.