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19171-89-2

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19171-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19171-89-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,1,7 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19171-89:
(7*1)+(6*9)+(5*1)+(4*7)+(3*1)+(2*8)+(1*9)=122
122 % 10 = 2
So 19171-89-2 is a valid CAS Registry Number.

19171-89-2Relevant articles and documents

Pictet-Spengler reactions in aprotic media. The total synthesis of (±) suaveoline

Trudell,Soerens,Weber,Hutchins,Grubisha,Bennett,Cook

, p. 1805 - 1822 (2007/10/02)

The first total synthesis of the indole alkaloid (±)-suaveoline 1 (a macroline-related base and a member of the sarpagine/ajmaline class of alkaloids) was completed in a stereocontrolled fashion. The serial synthesis employed three intramolecular reaction

Asymmetric synthesis and absolute configuration of (-)-trypargine

Shimizu,Ishikawa,Komoda,et al.

, p. 1313 - 1325 (2007/10/02)

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