Merck 800133 0250 Barbituric Acid For Synthesis 250 GR.

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Description
Catalogue Number	800133
Synonyms	2,4,6-Trihydroxypyrimidine, N,N'-Malonylurea

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Product Information
CAS number	67-52-7
EC number	200-658-0
Hill Formula	C₄H₄N₂O₃
Molar Mass	128.09 g/mol
HS Code	2933 52 00
Structure formula Image
Quality Level	MQ200

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Applications
Application	Barbituric acid for synthesis. CAS 67-52-7, pH 2 - 3 (50 g/l, H₂O, 60 °C).

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Physicochemical Information
Flash point	150.00 °C
Melting Point	250 - 252 °C (decomposition)
pH value	2 - 3 (50 g/l, H₂O, 60 °C)
Bulk density	720 kg/m3
Solubility	11.45 g/l

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Toxicological Information
LD 50 oral	LD50 Rat > 5000 mg/kg

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

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Storage and Shipping Information
Storage	Store below +30°C.

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Specifications
Assay (acidimetric)	≥ 99.0 %
Identity (IR)	passes test