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141899-50-5

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141899-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141899-50-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,8,9 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 141899-50:
(8*1)+(7*4)+(6*1)+(5*8)+(4*9)+(3*9)+(2*5)+(1*0)=155
155 % 10 = 5
So 141899-50-5 is a valid CAS Registry Number.

141899-50-5Relevant academic research and scientific papers

Structure and Synthesis of a New Indole Alkaloid, 19(S)-Hydroxy-Nb-methylraumacline, Obtained by the Biotransformation of Ajmaline in Plant Cell Cultures of Rauwolfia Serpentina Benth.

Takayama, Hiromitsu,Kitajima, Mariko,Suda, Shinya,Aimi, Norio,Sakai, Shin-ichiro,et al.

, p. 2627 - 2634 (1992)

From the plant cell suspension cultures of Rauwolfia serpentina Benth., which were cultivated in the alkaloid-production medium after feeding of ajmaline (1), a new indole alkaloid 19-(S)-hydroxy-Nb-methylraumacline (4) was isolated.The structu

Synthetic studies on gelsedine alkaloids-I: Stereoselective preparation of hypothetical biogenetic intermediates, D-Norsarpagine type compounds from ajmaline

Takayama,Horigome,Aimi,Sakai

, p. 1287 - 1290 (2007/10/02)

D-Norsarpagine type compound (4) and its C/D ring-opening derivative (22), which were corresponding to the hypothetical biogenetic intermediate for gelsedine (6), were prepared from ajmaline (3) via the deformylation (C21) and the construction

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