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144492-91-1

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144492-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144492-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,4,9 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 144492-91:
(8*1)+(7*4)+(6*4)+(5*4)+(4*9)+(3*2)+(2*9)+(1*1)=141
141 % 10 = 1
So 144492-91-1 is a valid CAS Registry Number.

144492-91-1Downstream Products

144492-91-1Relevant articles and documents

Regioselectivity in the Reaction of Tantalum-Unsymmetrical Acetylene Complexes with Carbonyl Compounds. Stereoselective Preparation of 1-Alkenyl Sulfides, α,β-Unsaturated Esters, and Amides

Kataoka, Yasutaka,Miyai, Jiro,Tezuka, Makoto,Takai, Kazuhiko,Utimoto, Kiitiro

, p. 6796 - 6802 (2007/10/02)

Tantalum-alkyne complexes, derived by treatment of alkynes with low-valent tantalum (TaCl5 and zinc), react in situ with carbonyl compounds to give (E)-allylic alcohols stereoselectively.When unsymmetrical acetylenes are employed in the reaction, two regi

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