1-Hydroxy-7-azabenzotriazole

Names

[ Name ]:
1-Hydroxy-7-azabenzotriazole

[Synonym ]:
1-Hydroxy-7-Azabenzotriazole
3H-1,2,3-Triazolo[4,5-b]pyridin-3-ol
3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol
3H-[1,2,3]Triazolo[4,5-b]pyridin-3-ol
3-hydroxytriazolo[4,5-b]pyridine
HOAt
MFCD00210053
7-Aza-1-hydroxybenzotriazole

Chemical & Physical Properties

[ Density]:
1.7±0.1 g/cm3

[ Boiling Point ]:
376.8±34.0 °C at 760 mmHg

[ Melting Point ]:
213-216°C

[ Molecular Formula ]:
C₅H₄N₄O

[ Molecular Weight ]:
136.111

[ Flash Point ]:
181.7±25.7 °C

[ Exact Mass ]:
136.038513

[ PSA ]:
63.83000

[ LogP ]:
-0.68

[ Vapour Pressure ]:
0.0±0.9 mmHg at 25°C

[ Index of Refraction ]:
1.836

[ Storage condition ]:
Store at RT.

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
F:Flammable

[ Risk Phrases ]:
R11;R36/37/38;R5

[ Safety Phrases ]:
S53-S45-S37/39-S26-S16-S39-S35

[ RIDADR ]:
UN 1993 3/PG 3

[ WGK Germany ]:
1

[ Hazard Class ]:
3.0

[ HS Code ]:
2933990090

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2933990090

[ Summary ]:
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%