144550-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144550-82-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,5,5 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 144550-82:
(8*1)+(7*4)+(6*4)+(5*5)+(4*5)+(3*0)+(2*8)+(1*2)=123
123 % 10 = 3
So 144550-82-3 is a valid CAS Registry Number.
144550-82-3Relevant articles and documents
Process for preparing substituted phenylsulfonylureas from sulfonyl halides
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Page/Page column 13-14, (2008/06/13)
The invention relates to a preparation process for a compound (I) or a salt thereof, in which Q, X*, Y, Z, R, R1, R2 and R3 are as defined in claim 1, which comprises a) ammonolyzing a comp. (II) in which Hal=halogen atom