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57293-25-1

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57293-25-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57293-25-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,9 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57293-25:
(7*5)+(6*7)+(5*2)+(4*9)+(3*3)+(2*2)+(1*5)=141
141 % 10 = 1
So 57293-25-1 is a valid CAS Registry Number.

57293-25-1Downstream Products

57293-25-1Relevant articles and documents

Indium tribromide-promoted arene-terminated epoxy olefin cyclization

Zhao, Jun-Feng,Zhao, Yu-Jun,Loh, Teck-Peng

, p. 1353 - 1355 (2008/12/21)

An arene-terminated epoxy olefin cyclization was promoted by a water-tolerant Lewis acid to give tri- and tetracyclic 3β-hydroxy terpenoids and steroid derivatives in 57 and 37% yields, respectively, per new formed ring up to 75%. The Royal Society of Chemistry.

Enantioselective biomimetic cyclization of homo(polyprenyl)arenes. A new entry to (+)-podpcarpa-8,11,13-triene diterpenoids and (-)-tetracyclic polyprenoid of sedimentary origin [4]

Ishihara,Ishibashi,Yamamoto

, p. 1505 - 1506 (2007/10/03)

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