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MERCK

MERCK 100289.0025 L-Glutamine for Biochemistry (SD.M.100289.0025)

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MERCK 100289.0025 L-Glutamine for Biochemistry

Description
Catalogue Number	100289
Synonyms	L-Glutamic acid-5-amide, Gln

Product Information
CAS number	56-85-9
EC number	200-292-1
Hill Formula	C₅H₁₀N₂O₃
Molar Mass	146.15 g/mol
HS Code	2924 19 99
Structure formula Image
Quality Level	MQ100

Applications
Application	L-Glutamine for biochemistry. CAS 56-85-9, pH 4.0 - 6.0 (25 g/l, H₂O, 20 °C).

Physicochemical Information
Density	1.47 g/cm3 (20 °C)
Melting Point	185 - 186 °C
pH value	5.0 - 6 (14.6 g/l, H₂O, 25 °C)
Vapor pressure	<0.1 hPa (25 °C)
Bulk density	640 kg/m3
Solubility	100 g/l

Toxicological Information
LD 50 oral	LD50 Rat 7500 mg/kg

Safety Information according to GHS
RTECS	MA2275100
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Storage and Shipping Information
Storage	Store at +2°C to +30°C.

Specifications
Assay (perchloric acid titration, calculated on dried substance)	99.0 - 101.0 %
Identity (IR-spectrum)	passes test
Appearance	white to almost white, fine powder
Appearance of solution (25 g/l; CO₂-free water)	clear and colorless
Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 2 mol/l, calc. on dried substance)	+31,5 to +33,0
Chloride (Cl)	≤ 200 ppm
Sulfate (SO₄)	≤ 200 ppm
As (Arsenic)	≤ 5 ppm
Ca (Calcium)	≤ 10 ppm
Co (Cobalt)	≤ 5 ppm
Fe (Iron)	≤ 5 ppm
K (Potassium)	≤ 5 ppm
Mg (Magnesium)	≤ 5 ppm
Na (Sodium)	≤ 50 ppm
Zn (Zinc)	≤ 5 ppm
Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity)	≤ 0.3 %
Ninhydrin-positive substances (LC) (ammonium (570 nm))	≤ 0.1 %
Ninhydrin-positive substances (LC) (total impurities)	≤ 0.5 %
Loss on drying (105 °C; 3 h)	≤ 0.3 %
	≤ 0.3 %

Global Trade Item Number
Catalogue Number	GTIN
1002891000	04022536003955
1002899010	04022536692586

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