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D-(-)-threo-2-amino-3-[4-(methylsulfonyl)phenyl]-1,3-propanediol hydrochloride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

256475-84-0

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256475-84-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256475-84-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,7 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 256475-84:
(8*2)+(7*5)+(6*6)+(5*4)+(4*7)+(3*5)+(2*8)+(1*4)=170
170 % 10 = 0
So 256475-84-0 is a valid CAS Registry Number.

256475-84-0Upstream product

256475-84-0Relevant academic research and scientific papers

Process for the synthesis of intermediates of chloramphenicol or its analogues

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Page/Page column 4; 4-5, (2008/06/13)

The present invention relates to the synthesis of antibacterial compounds such as Chloramphenicol and its analogues Thiamphenicol and Florfenicol and particularly to a new reaction for the preparation of the intermediate compound aminodiolphenylsulfone. This reaction permits the introduction of modified residues to obtain modified antibiotics with an improved stability towards the action of bacterial resistant determinants. In addition, higher purities may be also obtained due to an improved procedure requiring fewer purification steps.

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