131389-14-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131389-14-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,3,8 and 9 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131389-14:
(8*1)+(7*3)+(6*1)+(5*3)+(4*8)+(3*9)+(2*1)+(1*4)=115
115 % 10 = 5
So 131389-14-5 is a valid CAS Registry Number.
131389-14-5Relevant articles and documents
Oxygen Ligation in the Nickel-mediated Co-cyclisation of a Hepta-1,6-diyne and Alkynol Derivatives
Bhatarah, Parveen,Smith, Edward H.
, p. 2603 - 2606 (2007/10/02)
The variation of the yields of the nickel-mediated co-cyclisation of a hepta-1,6-diyne with alkynols and alkynol ethers in a regular fashion dependent on the position and steric environment of the oxygen atom is strongly indicative that this a