99203-88-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99203-88-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,0 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99203-88:
(7*9)+(6*9)+(5*2)+(4*0)+(3*3)+(2*8)+(1*8)=160
160 % 10 = 0
So 99203-88-0 is a valid CAS Registry Number.
99203-88-0Relevant articles and documents
A simple method for the conversion of propargyl alcohols to symmetrical 1,5-diynes using low valent titanium reagents
Karunakar, Galla V.,Periasamy, Mariappan
, p. 3549 - 3552 (2006)
Reaction of propargyl alcohols with low valent titanium species, prepared using the TiCl4/Et3N and TiCl4/Zn reagent systems, gives the corresponding symmetrical 1,5-diynes in 56-74% yields.
