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146307-57-5

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146307-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146307-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,3,0 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 146307-57:
(8*1)+(7*4)+(6*6)+(5*3)+(4*0)+(3*7)+(2*5)+(1*7)=125
125 % 10 = 5
So 146307-57-5 is a valid CAS Registry Number.

146307-57-5Upstream product

146307-57-5Relevant articles and documents

Diastereoselective Construction of 2,2,6-Trisubstituted Tetrahydropyrans by Intramolecular Alkylation Reaction of Lithiium Enolates Generated from α-Alkoxy Carboxylates

Fujisawa, Tamotsu,Okumura, Yoshiyuki,Morita, Kazuhisa,Ukaji, Yutaka

, p. 3487 - 3489 (1992)

The intramolecular alkylation reaction of enolates of t-butyl α-alkoxy carboxylates in THF-HMPA proceeded stereoselectively to afford 2,2,6-trisubstituted tetrahydropyrans with high cis-selectivity.

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