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99211-12-8

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99211-12-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99211-12-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,1 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99211-12:
(7*9)+(6*9)+(5*2)+(4*1)+(3*1)+(2*1)+(1*2)=138
138 % 10 = 8
So 99211-12-8 is a valid CAS Registry Number.

99211-12-8Downstream Products

99211-12-8Relevant articles and documents

The synthesis of mono- and dihydroxy aromadendrane sesquiterpenes, starting from natural (+)-aromadendrene-III

Gijsen, Harrie J. M.,Wijnberg, Joannes B. P. A.,Stork, Gerrit A.,De Groot, Aede,De Waard, Maarten A.,Van Nistelrooy, Johannes G. M.

, p. 2465 - 2476 (1992)

The monoalcohols (-)-globulol (2), (-)-epiglobulol (3), (-)-ledol (4), and (+)-viridiflorol (5) were synthesized from (+)-aromadendrene (1). The cis-fused alloaromandedrone (14), the key intermediate used in the synthesis of 4 and 5, was obtained from the trans-fused apoaromadendrone (13) via a selective protonation of the thermodynamic enol trimethylsilylether 15. After hydroxylation of the tertiary C11 of 13 with RuO4, (+)-spathulenol (6), (-)-allospathulenol (7), and the aromadendrane diols 8-11 could be prepared. Compounds 2-11 were tested for antifungal properties, but their activity was only moderate.

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