| Identification | More | [Name]
1-Hydroxy-7-azabenzotriazole | [CAS]
39968-33-7 | [Synonyms]
3H-[1,2,3]-TRIAZOLO[4,5-B]PYRIDIN-3-OL
3H-1,2,3-TRIAZOLO[4,5-B]PYRIDINE, 3-HYDROXY-
7-AZA-1-HYDROXYBENZOTRIAZOLE
HOAT
1-HYDROXY-7-AZABENZOTRIAZOLE 0.5 TO &
1-HYDROXY-7-AZABENZOTRIAZOLE SOLUTION, 0.5M IN DMF
HOAT [1-HYDROXY-7-AZABENZOTRIAZOLE]
1-Hydroxy-7-Azabenzotriazole99%Puriss
[1,2,3]Triazolo[4,5-b]pyridin-3-ol
1H-[1,2,3]triazolo[4,5-b]pyridine 3-Oxide
1-Hydroxy-7-azabenzotriazole solution
1-Hydroxy-7-azabenotriazole
1-Hydroxy-7-azabenzotriazole (HOAt)
1-HYDROXY-7-AZABENZOTRIAZOL
HO-EPCP
1-Hydroxy-7-azabenzotriazole solution, 0.6 M in DMF
[1,2,3]Triazolo[4,5-β]pyridin-3-ol
1H-[1,2,3]triazolo[4,5-β]pyridine 3-Oxide
3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol, HOAt
1-Hydroxy-7-azabenzotriazole ,98% | [EINECS(EC#)]
609-760-3 | [Molecular Formula]
C5H4N4O | [MDL Number]
MFCD00210053 | [Molecular Weight]
136.11 | [MOL File]
39968-33-7.mol |
| Chemical Properties | Back Directory | [Appearance]
Clear, colorless liquid | [Melting point ]
213-216°C | [Boiling point ]
250.36°C (rough estimate) | [density ]
0.973 g/mL at 20 °C
| [refractive index ]
n20/D 1.441
| [Fp ]
213-216°C | [storage temp. ]
Store at RT. | [solubility ]
>6.8mg/mL in DMSO | [form ]
Powder | [pka]
5.85±0.58(Predicted) | [color ]
White to yellow | [Decomposition ]
213-216 ºC | [Detection Methods]
HPLC | [CAS DataBase Reference]
39968-33-7(CAS DataBase Reference) | [EPA Substance Registry System]
39968-33-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,Xi,F,Xn,E | [Risk Statements ]
R61:May cause harm to the unborn child.
R20/21:Harmful by inhalation and in contact with skin .
R36:Irritating to the eyes.
R5:Heating may cause an explosion.
R36/37/38:Irritating to eyes, respiratory system and skin .
R11:Highly Flammable.
R41:Risk of serious damage to eyes.
R37/38:Irritating to respiratory system and skin .
R22:Harmful if swallowed.
R2:Risk of explosion by shock, friction, fire or other sources of ignition. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S16:Keep away from sources of ignition-No smoking .
S39:Wear eye/face protection .
S35:This material and its container must be disposed of in a safe way .
S36:Wear suitable protective clothing . | [RIDADR ]
UN 1993 3/PG 3
| [WGK Germany ]
1
| [Hazard Note ]
Irritant | [HazardClass ]
IRRITANT | [PackingGroup ]
Ⅱ | [HS Code ]
29339900 |
| Hazard Information | Back Directory | [Chemical Properties]
Clear, colorless liquid | [Uses]
1-Hydroxy-7-azabenzotriazole can be used as antibacterial, anti-aging and flame-retardant dendritic polyacrylate emulsion. | [reaction suitability]
reaction type: Addition Reactions | [Precautions]
3-Hydroxy-3H-1,2,3-triazolo[4,5-b]pyridine is stable, not hygroscopic, and can be stored indefinitely. HOAt (3-Hydroxy-3H-1,2,3-triazolo[4,5-b]pyridine) solutions in DMF (0.3 M) can be stored in an inert atmosphere for weeks. Syntheses of peptides carried out with freshly prepared and 4-week-old solutions show similar quality to the crude product. Violent decomposition may occur when dried at elevated temperatures.
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