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295777-97-8

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295777-97-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 295777-97-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,5,7,7 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 295777-97:
(8*2)+(7*9)+(6*5)+(5*7)+(4*7)+(3*7)+(2*9)+(1*7)=218
218 % 10 = 8
So 295777-97-8 is a valid CAS Registry Number.

295777-97-8Relevant articles and documents

A facile synthesis of various butenolides

Tanyeli, Cihangir,Caliskan, Zerrin Zerenler

, p. 2855 - 2862 (2000)

The synthesis of α'-acyloxy-α,β-unsaturated cyclic ketones from the corresponding α,β-unsaturated cyclic ketones by using manganese (III) acetate in combination with 2-chloropropionic acid followed by subsequent Arbuzov and intramolecular Horner-Emmons cyclization reactions provided a convenient synthetic pathway to various butenolides 4a-d.

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