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39837-09-7

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39837-09-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39837-09-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,3 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 39837-09:
(7*3)+(6*9)+(5*8)+(4*3)+(3*7)+(2*0)+(1*9)=157
157 % 10 = 7
So 39837-09-7 is a valid CAS Registry Number.

39837-09-7Relevant articles and documents

Preparation Method for Homocystein Thiolactone or Selenolactone

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Paragraph 0042-0047, (2021/09/14)

The present invention provides an expensive reagent such as homocysteine thiolactone or selenolactone as the main intermediate of erdosteine, or an expensive reagent such as HI. More specifically, A) a homoserine lactone or N - protected homoserine is reacted with a thiocarboxylic acid metal salt or selenocarboxylic acid metal salt (RCOXM, X=S or Se). B) Step A) of producing homocysteine thiolactone or homocysteine sonoactone by deprotection of N - protected homocysteine thiolactone or N - protected homocysteine seleactone. The present invention relates to a method for producing homocysteine thiactone or homocysteine senolactone or a salt thereof by the following reaction scheme. [Reaction Scheme] Then, this time. X Is S or Se, R and R ' are independently alkyl or aryl which is C1 - C6, and M is Na or K.

Method of preparing ligands for hydrophobic interaction chromatography

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Page/Page column 7, (2008/06/13)

The invention is a method of preparing multimodal ligands for hydrophobic interaction chromatography (HIC), which comprises providing a cyclic scaffold comprising a thiol, an amine and a carbonyl group; derivatisation of the nitrogen with a reagent to int

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