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139294-33-0

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139294-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139294-33-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,9 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 139294-33:
(8*1)+(7*3)+(6*9)+(5*2)+(4*9)+(3*4)+(2*3)+(1*3)=150
150 % 10 = 0
So 139294-33-0 is a valid CAS Registry Number.

139294-33-0Relevant articles and documents

An Efficient and Convenient Synthesis of Bridged δ-Lactones

Kido, Fusao,Kawada, Yasuhiko,Kato, Michiharu,Yoshikoshi, Akira

, p. 6159 - 6162 (2007/10/02)

endo-4-Ethoxycarbonyl-4-(phenylthio)-9-methylene-2-oxabicyclononan-3-ones (5a-c) and their related compounds 5e-h, and endo-4-ethoxycarbonyl-4-(phenylthio)-8-methylene-2-oxabicyclooctan-3-one (5d) were synthesized from α-diazomalonates 3 of 2-(phenylthio)cyclohex-2-en-1-ols (1a-c) and their related compounds 1e-h, and 2-(phenylthio)cyclopent-2-en-1-ol (1d), respectively, via the sigmatropic rearrangement of cyclic allylsulfonium ylides 4.

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