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Metoclopramide Hydrochloride Monohydrate USP

Metoclopramide Hydrochloride Monohydrate USP


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Metoclopramide Hydrochloride IP /BP / USP - CAS 54143-57-6

Metoclopramide Hydrochloride pdf api
Metoclopramide Hydrochloride Monohydrate USP

Specification: IP /BP/ USP

Chemical name: 4-amino-5-chloro-N-[2-(diethylamino)ethyl]-2-methoxybenzamide hydrochloride

Molecular formula:  C14H23Cl2N3O2, H2O
Molecular weight:  354.3
CAS Registery number:  54143-57-6
General information: White or practically white, crystalline, odorless or practically odorless powder. Very soluble in water; freely soluble in alcohol; sparingly soluble in chloroform; practically insoluble in ether.

Content of metoclopramide hydrochloride
calculated on anhydrous substance: 98.0% - 101.0%   (USP)
Action and use

Dopamine receptor antagonist; antiemetic.

Preparations

Metoclopramide Injection
Metoclopramide Oral Solution
Metoclopramide Tablets

DEFINITION

Metoclopramide hydrochloride contains not less than 99.0 per cent and not more than the equivalent of 101.0 per cent of 4-amino-5-chloro- N-[2-(diethylamino)ethyl]-2- methoxybenzamide hydrochloride, calculated with reference to the anhydrous substance.

CHARACTERS: White or almost white, crystalline powder or crystals, very soluble in water, freely soluble in alcohol, sparingly soluble in methylene chloride. It melts at about 183 C with decomposition.


IDENTIFICATION

First identificationıA, B, D.
Second identification
ıA, C, D, E.
ıA. The pH (2.2.3) of solution S (see Tests) is 4.5 to 6.0.

ıB. Examine by infrared absorption spectrophotometry (2.2.24), comparing with the spectrum
obtained with
metoclopramide hydrochloride CRS. Examine the substances as discs prepared using potassium chloride R.

ıC. Examine the chromatograms obtained in the test for related substances in ultraviolet light before spraying with dimethylaminobenzaldehyde solution R1. The principal spot in the chromatogram obtained with test solution (b) is similar in position and size to the principal spot in the chromatogram obtained with reference solution (a).

ıD. Dilute 1 ml of solution S to 2 ml with water R. The solution gives reaction (a) of chlorides (2.3.1).

ıE. Dissolve about 2 mg in 2 ml aromatic amines (2.3.1).

TESTS

Solution S : Dissolve 2.5 g in carbon dioxide-free water R and dilute to 25 ml with the same solvent.

Appearance of solution : Solution S is clear (2.2.1) and colourless (2.2.2, Method II).

Related substances: Examine by thin-layer chromatography (2.2.27), using silica gel HF254 R as the coating substance.

Test solution (a)ıDissolve 0.40 g of the substance to be examined in methanol R and dilute to 10 ml with the same solvent.

Test solution (b)ıDilute 1 ml of test solution (a) to 10 ml with methanol R. Reference solution (aıDissolve 20 mg of metoclopramide hydrochloride CRS in methanol R and dilute to 5 ml with the same solvent.

Reference solution (b)ıDilute 5 ml of test solution (a) to 100 ml with methanol R. Dilute 1 ml of this solution to 10 ml with methanol R.
Reference solution (c)ıDissolve 10 mg of N,N-diethylethylenediamine R in methanol R and dilute to 50 ml with the same solvent.

Apply separately to the plate 5 μl of each solution. Develop over a path of 12 cm using a mixture of 2 volumes of concentrated ammonia R, 10 volumes of dioxan R, 14 volumes of methanol R and 90 volumes of methylene chloride R. Allow the plate to dry in air. Examine in ultraviolet light at 254 nm. Any spot in the chromatogram obtained with test solution (a), apart from the principal spot, is not more intense than the spot in the chromatogram obtained with reference solution (b) (0.5 per cent). Spray with dimethylaminobenzaldehyde solution R1.

Allow the plate to dry in air. Any spot in the chromatogram obtained with test solution (a) that has not been visualised in ultraviolet light at 254 nm is not more intense than the spot in the chromatogram obtained with reference solution (c) (0.5 per cent).

Heavy metals (
2.4.8)
12 ml of solution S complies with limit test A for heavy metals (20 ppm). Prepare the standard

using lead standard solution (2 ppm Pb) R. 4.5 per cent to 5.5 per cent, determined on 0.500 g by the semi-micro determination of water.

ASSAY

Dissolve 0.2500 g in a mixture of 5.0 ml of 0.01 M hydrochloric acid and 50 ml of alcohol R. Carry out a potentiometric titration (2.2.20), using 0.1 M sodium hydroxide. Read the volume of 0.1 M sodium hydroxide added between the two points of inflexion.

1 ml of 0.1 M sodium hydroxide is equivalent to 33.63 mg of C14H23Cl2N3O2.

STORAGE

Store protected from light.

PACKAGE: 25kg/ Drum
 

Note: Also available: IP/BP Grades.



Information Associated with Product :  


                          
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Metoclopramide Hydrochloride

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