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(S)-5-Benzyloxy-3-hydroxy-4-methyl-pentanoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

123176-53-4

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123176-53-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123176-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,1,7 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 123176-53:
(8*1)+(7*2)+(6*3)+(5*1)+(4*7)+(3*6)+(2*5)+(1*3)=104
104 % 10 = 4
So 123176-53-4 is a valid CAS Registry Number.

123176-53-4Downstream Products

123176-53-4Relevant academic research and scientific papers

A New Synthetic Route to the Key Precursor of 1β-Methylcarbapenem Antibiotics from (S)-Methyl 3-Hydroxy-2-methylpropanoate

Shirai, Fumiyuki,Nakai, Takeshi

, p. 445 - 448 (1989)

A new synthetic route to the 1β-methylcarbapenem precursor from (S)-methyl 3-hydroxy-2-methylpropanoate has been developed which involves as a key step the chelation-controlled aldol reaction of (S)-3-benzyloxy-2-methylpropanal with ketene trimethylsilyl acetal of ethyl (trimethylsilyl)acetate.

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