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Name	7-Hydroxy-5-methyl-1,3,4-triazaindolizine	EINECS	219-706-7
CAS No.	2503-56-2	Density	1.609 g/cm³
PSA	63.31000	LogP	0.13830
Solubility	insoluble in cold water	Melting Point	280-283 °C(lit.)
Formula	C₆H₆N₄O	Boiling Point	271.66°C (rough estimate)
Molecular Weight	150.14	Flash Point	N/A
Transport Information	N/A	Appearance	white fine crystalline powder
Safety	26-36-37/39	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	s-Triazolo[1,5-a]pyrimidin-7-ol,5-methyl- (6CI,7CI,8CI);1,3,7-Triaza-4-hydroxy-6-methylindolizine;4-Hydroxy-6-methyl-1,2,4-triazolo[2,3-a]pyrimidine;4-Hydroxy-6-methyl-1,3,3a,7-tetraazaindene;5-Methyl-7-hydroxy-1,2,4-triazolo[1,5-a]pyrimidine;5-Methyl-7-hydroxy-1,3,4-triazaindolizine;5-Methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol;5-Methyl-s-triazolo[1,5-a]pyrimidin-7-ol;6-Methyl-4-hydroxy-1,3,3a,7-tetraazaindene;7-Hydroxy-5-methyl-s-triazolo[1,5-a]pyrimidine;NSC 32071;TAI;TAI (sensitizer);	Article Data	17

7-Hydroxy-5-methyl-1,3,4-triazaindolizine Chemical Properties

Molecular Formula:C₆H₆N₄O
Molar mass:150.138g/mol
Structure :

Synonyms :5-Methyl[1,2,4]triazolo[1,5-a]pyrimidin-7-ol;5-Methyl-7-hydroxy-1,2,4-triazolo[1,5-a]pyrimidine;[1,2,4]Triazolo[1,5-a]pyrimidin-7-ol, 5-methyl-;5-Methyl-s-triazolo[1,5-a]pyrimidin-7-ol
Density:1.6 g/cm³
Index of Refraction:1.772
Melting point:280-283°C
Water solubility:INSOLUBLE IN COLD WATER

7-Hydroxy-5-methyl-1,3,4-triazaindolizine Uses

7-Hydroxy-5-methyl-1,3,4-triazaindolizine(2503-56-2) can be used as intermediates of durg: yl-ethyl amine.
7-Hydroxy-5-methyl-1,3,4-triazaindolizine(2503-56-2) also can be used as a film of anti-fog agent.

7-Hydroxy-5-methyl-1,3,4-triazaindolizine Production

3 - amino-1,2,4 - triazole with ethyl acetoacetate, in glacial acetic acid, was refluxed 4 hours, then has the reaction of the cyclization to derive the product.

7-Hydroxy-5-methyl-1,3,4-triazaindolizine Toxicity Data With Reference

1.mouse LD50 intravenous > 450mg/kg (450mg/kg)
Oyo Yakuri. Pharmacometrics. Vol. 13, Pg. 597, 1977.
2. Carcinogenicity of 7-Hydroxy-5-methyl-1,3,4-triazaindolizine(2503-56-2) hasn't been listed as a carcinogen by NTP, IARC,ACGIH, or CA Prop 65.You can see actual entry in RTECS for complete information.

7-Hydroxy-5-methyl-1,3,4-triazaindolizine Safety Profile

Hazard Codes:Xi

Risk Statements:
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection

7-Hydroxy-5-methyl-1,3,4-triazaindolizine Specification

Polymerization of the 7-Hydroxy-5-methyl-1,3,4-triazaindolizine(2503-56-2) is stable under normal temperature and pressure conditions, and you must not take it with strong oxidants.And also prevent it to broken down into hazardous decomposition products:irritating and toxic fumes and gases.and its polymerization is hazardous.

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