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219602-06-9

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219602-06-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219602-06-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,0 and 2 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 219602-06:
(8*2)+(7*1)+(6*9)+(5*6)+(4*0)+(3*2)+(2*0)+(1*6)=119
119 % 10 = 9
So 219602-06-9 is a valid CAS Registry Number.

219602-06-9Downstream Products

219602-06-9Relevant articles and documents

Process for producing 4-alkoxycarbonyl-2-oxazolidinone compound

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, (2008/06/13)

The present invention relates to a process for producing 4-alkoxycarbonyl-2-oxazolidinone compound represented by the formula (III): wherein R1represents H, an alkyl group, an cycloalkyl group, an alkenyl group or a phenyl group, R2represents H, an alkyl group, a phenyl group or an alkenyl group, R3represents an alkyl group, a cycloalkyl group, an alkenyl group, or a phenyl group, and R4represents H, an alkyl group, an alkenyl group, acycloalkyl group, alkynyl group, an aryl group, a 5- or 6-membered heteroaromatic ring group, an alkoxycarbonyl group, an acetyl group or a benzoyl group, which comprises reacting a 5-alkoxy-2(3H)oxazolone compound represented by the formula (I): wherein R1, R2and R3have the same meanings as defined above, and an aldehyde compound represented by the formula (II): R4CHO??(II) wherein R4has the same meaning as defined above, in the presence of a Lewis acid catalyst.

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