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(5S,6R)-6-Benzyloxymethyl-5-methyl-5,6-dihydro-pyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

217640-05-6

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217640-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217640-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,6,4 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 217640-05:
(8*2)+(7*1)+(6*7)+(5*6)+(4*4)+(3*0)+(2*0)+(1*5)=116
116 % 10 = 6
So 217640-05-6 is a valid CAS Registry Number.

217640-05-6Relevant academic research and scientific papers

Absolute stereostructure and total synthesis of leptomycin B

Kobayashi, Motomasa,Wang, Weiqi,Tsutsui, Yasuhiro,Sugimoto, Masanori,Murakami, Nobutoshi

, p. 8291 - 8294 (2007/10/03)

The absolute stereostructure of leptomycin B, an antitumor antibiotic and inhibitor of nuclear protein export, was firstly presumed as 1 having 4S, 5R, 10R, 16R, 18S, 19R, 20S on the basis of NMR comparison with callystatin A (2) and then 1 was asymmetric

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