129758-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129758-84-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,7,5 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129758-84:
(8*1)+(7*2)+(6*9)+(5*7)+(4*5)+(3*8)+(2*8)+(1*4)=175
175 % 10 = 5
So 129758-84-5 is a valid CAS Registry Number.
129758-84-5Relevant academic research and scientific papers
Wagner,Heitz,Mioskowski
, p. 3141 - 3144 (1990)
1-Bromo-1-alkynes are prepared in high yields under very mild conditions by treatment of primary alkynes with PPh3/CBr4.
