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107398-22-1

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107398-22-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107398-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,3,9 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 107398-22:
(8*1)+(7*0)+(6*7)+(5*3)+(4*9)+(3*8)+(2*2)+(1*2)=131
131 % 10 = 1
So 107398-22-1 is a valid CAS Registry Number.

107398-22-1Relevant articles and documents

Synthetic Photochemistry. XLII. Total Synthesis of Cycloaraneosene, a Fundamental Hydrocarbon of 5-8-5-Membered Tricyclic Diterpenoid from Sordaria araneosa

Kato, Nobuo,Tanaka, Shinya,Takeshita, Hitoshi

, p. 3231 - 3238 (2007/10/02)

A 5-8-5-membered tricyclic diterpene, cycloaraneosene, has been totally synthesized via a stereoselective condensation of two units of optically active iridoids, a Cope rearrangement, a chemical reduction of the tetrasubstituted double bond, and the formation of an eight-membered ring.The proposed structure of natural hydroxycycloaraneosene should be revised to 8β-hydroxycycloaraneosene, judging from the NMR spectral data.

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