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(1R,3S,4S,5S,6S,9R)-4,9-dimethyl-5-phenylseleno-3-(tetrahydropyran-2-yloxy)-7-oxabicyclo<4.3.0>nonane and (1R,3S,4S,5S,6S,9S)-4,9-dimethyl-5-phenylseleneo-3-(tetrahydropyran-2-yloxy)-7-oxabicyclo<4.3.0>nonane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138944-98-6

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138944-98-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138944-98-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,4 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138944-98:
(8*1)+(7*3)+(6*8)+(5*9)+(4*4)+(3*4)+(2*9)+(1*8)=176
176 % 10 = 6
So 138944-98-6 is a valid CAS Registry Number.

138944-98-6Relevant academic research and scientific papers

Stereoselective synthesis of both half segments for (-)-sarcophytonin A and (-)-sarcophytoxide

Nishitani,Harada,Sano,Sato,Yamakawa

, p. 2514 - 2524 (2007/10/02)

A stereoselective synthesis of a dihydrofuran derivative (5) and an allylhalide (8), possible precursors of the cembranes (-)-sarcophytonin A and (-)-sarcophytoxide, is described. The optically active dihydrofuran, right half, segment (49) was synthesized

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