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89597-27-3

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89597-27-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89597-27-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,9 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89597-27:
(7*8)+(6*9)+(5*5)+(4*9)+(3*7)+(2*2)+(1*7)=203
203 % 10 = 3
So 89597-27-3 is a valid CAS Registry Number.

89597-27-3Downstream Products

89597-27-3Relevant articles and documents

Regioselective Photocycloaddition of 2-Cyclopentenone to Some Allenes

Sydnes, Leiv K.,Stensen, Wenche

, p. 657 - 664 (2007/10/02)

Irradiation (λ>295 nm) of 2-cyclopentenone in the presence of 3-methyl-1,2-butadiene, 2-methyl-2,3-pentadiene, and 1,2-cyclononadiene gave mixtures of cycloadducts in good yields (>78percent).The mixtures contained head-to-head and head-to-tail isomers in an approximate ratio of 80:20.The additions to the acyclic allenes occurred across the less highly substituted double bond.The mechanism of the reactions is discussed.

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