DL-METHIONINE For Biochemistry

DL-METHIONINE For Biochemistry

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Category: Amino Acids & Derivatives

Description
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Description

(Confirms to BP)
(±)-2-Amino-4-(methylmercapto)butyric acid; DL-2-Amino-4-(methylthio)butanoic acid

Article No.	04606	Grade	For Biochemistry
Purity	99%	CAS No.	59-51-8
Molecular Formula	C₅H₁₁NO₂S	Molecular Weight	149.21
H.S. Code	2930.4000	Shelf Life	60 Months

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Physical Properties

Physical state at 20 °C	Solid	Colour	White granular
Melting point/ Freezing point [°C]	280 °C	Boiling point [°C]	186 °C
Density [g/cm3]	1.34	Solubility in water [% weight]	Soluble in water

Specifications

Appearance	White to almost white, crystalline powder or small flakes, melt at 270°C
Assay (Potentiometric; on anhydrous basis)	99.0-101.0%
Solubility	Sparingly soluble in water, very slightly soluble in alcohol. It dissolves in dilute acids and in dilute solutions of the alkali hydroxides
Identifications	To comply BP test
Appearance of solution	To comply BP test
Loss on drying (at 105°C; 3 hrs)	Max 0.5%
pH (2% solution in water)	5.4 to 6.1
Chlorides	Max 0.02%
Sulphates	Max 0.02%
Heavy metal (as Pb)	Max 0.002%
Sulphated ash	Max 0.1%
Related Substances ( by TLC)	To comply BP test

Packings

100 g	00100
500 g	00500
1000 g	01000

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