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4223-27-2

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4223-27-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4223-27-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,2 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4223-27:
(6*4)+(5*2)+(4*2)+(3*3)+(2*2)+(1*7)=62
62 % 10 = 2
So 4223-27-2 is a valid CAS Registry Number.

4223-27-2Downstream Products

4223-27-2Relevant articles and documents

PROCESS FOR THE PREPARATION OF N-SUBSTITUTED CARBAMIC ACID ESTER AND PROCESS FOR THE PREPARATION OF ISOCYANATE USING THE N-SUBSTITUTED CARBAMIC ACID ESTER

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Page/Page column 132; 138, (2011/06/10)

The present invention provides a method for producing N-substituted carbamic acid-O-aryl ester derived from a compound having an ureido group, the method comprising the step of carrying out esterification or esterification and transesterification from the compound having the ureido group and a hydroxy composition containing one type or a plurality of types of hydroxy compounds.

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