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(4S,5S)-5-((R)-2-Hydroxy-pent-4-enyl)-2,2,4-trimethyl-oxazolidine-3-carboxylic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

193331-92-9

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193331-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193331-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,3,3 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 193331-92:
(8*1)+(7*9)+(6*3)+(5*3)+(4*3)+(3*1)+(2*9)+(1*2)=139
139 % 10 = 9
So 193331-92-9 is a valid CAS Registry Number.

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