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39968-33-7

Name 1-Hydroxy-7-azabenzotriazole
CAS 39968-33-7
EINECS(EC#) 609-760-3
Molecular Formula C5H4N4O
MDL Number MFCD00210053
Molecular Weight 136.11
MOL File 39968-33-7.mol
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Chemical Properties

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)
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

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

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