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66018-72-2

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66018-72-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66018-72-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,0,1 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 66018-72:
(7*6)+(6*6)+(5*0)+(4*1)+(3*8)+(2*7)+(1*2)=122
122 % 10 = 2
So 66018-72-2 is a valid CAS Registry Number.

66018-72-2Relevant 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 127, (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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