55669-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55669-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,6 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55669-91:
(7*5)+(6*5)+(5*6)+(4*6)+(3*9)+(2*9)+(1*1)=165
165 % 10 = 5
So 55669-91-5 is a valid CAS Registry Number.
55669-91-5Relevant academic research and scientific papers
Catalytic head-to-head alkyne dimerization to give Z-enynes
Jun, Chul-Ho,Lu, Zheng,Crabtree, Robert H.
, p. 7119 - 7120 (2007/10/02)
The catalyst [Ir(biph) (PMe3)3 Cl] (biph = biphenyl-2,2′-diyl) gives head-to-head dimerization of 1-alkynes to the corresponding Z-enynes.
