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1581736-03-9

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1581736-03-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1581736-03-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,1,7,3 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1581736-03:
(9*1)+(8*5)+(7*8)+(6*1)+(5*7)+(4*3)+(3*6)+(2*0)+(1*3)=179
179 % 10 = 9
So 1581736-03-9 is a valid CAS Registry Number.

1581736-03-9Relevant articles and documents

Synthesis of substituted styrenes and 3-vinylphenols using ruthenium-catalyzed ring-closing enyne metathesis

Yoshida, Kazuhiro,Nishii, Kana,Kano, Yuto,Wada, Shiro,Yanagisawa, Akira

, p. 4231 - 4239 (2014/05/20)

The synthesis of substituted styrenes 3 and 3-vinylphenols 9 was achieved by ring-closing enyne metathesis (RCEM)/dehydration of 7 and RCEM/tautomerization of 8, respectively. Those methods provide selective access to unique aromatic compounds and solve the problem of regioisomer formation.

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