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7520-69-6

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7520-69-6 Usage

Chemical Properties

White Solid

Uses

Trimethoprim intermediate.

Check Digit Verification of cas no

The CAS Registry Mumber 7520-69-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,5,2 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7520-69:
(6*7)+(5*5)+(4*2)+(3*0)+(2*6)+(1*9)=96
96 % 10 = 6
So 7520-69-6 is a valid CAS Registry Number.
InChI:InChI=1/C14H17NO4/c1-16-9-11(8-15)5-10-6-12(17-2)14(19-4)13(7-10)18-3/h5-7H,9H2,1-4H3/b11-5+

7520-69-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 3,4,5-TRIMETHOXY-2-(METHOXYMETHYL)CINNAMONITRILE

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7520-69-6 SDS

7520-69-6Relevant articles and documents

Syntheses of Antibacterial 2,4-Diamino-5-benzylpyrimidines. Ormetoprim and Trimethoprim

Manchand, Percy S.,Rosen, Perry,Belica, Peter S.,Oliva, Gloria V.,Perrotta, Agostino V.,Wong, Harry S.

, p. 3531 - 3535 (2007/10/02)

A general and mild method for the synthesis of 2,4-diamino-5-benzylpyrimidines was achieved by the Friedel-Crafts reaction between 2-(methoxymethylene)-3-methoxypropanenitrile (10) and an activated aromatic substrate followed by treatment with guanidine.The method is illustrated by a synthesis of ormetoprim (2) in 75percent overall yield from 3,4-dimethoxytoluene (12).Efficient syntheses of trimethoprim (1) and 2 were also accomplished via prior base-catalyzed 1,3-prototropic isomerization of cinnamonitriles 19 and 20, respectively, followed by condensation with guanidine. 12 was prepared from 3-bromo-4-methoxytoluene by a Cu(I)-catalyzed displacement of bromine by methoxide and 4,5-dimethoxy-2-methylbenzaldehyde was obtained from 12 in 87percent yield by a pyridine-catalyzed Vilsmeier reaction using DMF-POCl3.

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