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1309659-99-1

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1309659-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1309659-99-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,6,5 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1309659-99:
(9*1)+(8*3)+(7*0)+(6*9)+(5*6)+(4*5)+(3*9)+(2*9)+(1*9)=191
191 % 10 = 1
So 1309659-99-1 is a valid CAS Registry Number.

1309659-99-1Downstream Products

1309659-99-1Relevant articles and documents

First total syntheses of bicyclic marine sesquiterpenoids drechslerines A and B

Hagiwara, Hisahiro,Fukushima, Masakazu,Kinugawa, Kimihiko,Matsui, Takuya,Hoshi, Takashi,Suzuki, Toshio

, p. 4061 - 4068 (2011/06/27)

The first total syntheses of the bicyclic sesquiterpenoids drechslerines A (1) and B (2), which were isolated from the algicolous fungus Drechslera dematioidea in the marine red alga Liagora viscida, has been accomplished starting from (S)-carvone (13) via three palladium-catalyzed reactions, namely, diastereoselective allylation, conjugate reduction, and carbon monoxide insertion, as the key reactions.

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