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(R)-3-Hydroxy-4-phenylsulfanyl-butyric acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

183540-68-3

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183540-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 183540-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,5,4 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 183540-68:
(8*1)+(7*8)+(6*3)+(5*5)+(4*4)+(3*0)+(2*6)+(1*8)=143
143 % 10 = 3
So 183540-68-3 is a valid CAS Registry Number.

183540-68-3Downstream Products

183540-68-3Relevant academic research and scientific papers

Ethyl (R)-3-hydroxy-4-phenylthiobutyrate: Synthesis by the bakers' yeast reduction and use as a precursor of enantiomerically pure β-lactam

Hayakawa, Ryuuichirou,Shimizu, Makoto,Fujisawa, Tamotsu

, p. 7533 - 7536 (1996)

The bakers' yeast reduction of ethyl 3-oxo-4-phenylthiobutanoate gave ethyl (R)-3-hydroxy-4-phenylthiobutanoate with >99%ee. The resultant enantiomerically pure alcohol was easily transformed into β-lactam without loss of its enantiomeric purity via the oxamate derivative.

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