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15441-95-9

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15441-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15441-95-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,4,4 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 15441-95:
(7*1)+(6*5)+(5*4)+(4*4)+(3*1)+(2*9)+(1*5)=99
99 % 10 = 9
So 15441-95-9 is a valid CAS Registry Number.

15441-95-9Relevant articles and documents

Synthesis of 2,4-diaminoquinazoline derivatives

Zielinski, Wojciech,Kudelko, Agnieszka,Holt, Elizabeth M.

, p. 319 - 328 (2007/10/03)

A series of 6- and 7-substituted derivatives of 2-(N,N-diethylamino)-4-(N,N-dimethylamino)quinazoline have been synthesized. The synthesis consists in converting N-phenyl-N',N'-diethylurea into chloroamidines which are treated with N,N-dimethylcyanamide t

Process for the preparation of trisubstituted ureas

-

, (2008/06/13)

The present invention provides a process for preparing a trisubstituted urea of the general formula: in which R is a substituted or unsubstituted mono-, di- or polyvalent aromatic radical, R' is a substituted or unsubstituted monovalent aliphatic or aromatic radical and R is a substituted or unsubstituted monovalent aliphatic radical or R' and R together represent a substituted or unsubstituted divalent radical in which at least one of the two carbon atoms adjoining the nitrogen atom of the urea is aliphatic, and n is an integer, wherein an aromatic nitrocompound of the general formula:--R(NO2)n or an aromatic nitrosocompound of the general formula:--R(NO)n is allowed to react with a secondary ammonium N,N-disubstituted thiolcarbamate of the general formula: or with a mixture of a secondary amine of the general formula:--R'R NH and carbon monoxide and sulphur, carbon monoxide and hydrogen sulphide, or carbonyl sulphide, or with a mixture of a secondary ammonium sulphide or hydrosulphide of the general formula: or and carbon monoxide.

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