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123333-53-9

Name 1-Hydroxybenzotriazole hydrate
CAS 123333-53-9
EINECS(EC#) 219-989-7
Molecular Formula C6H7N3O2
MDL Number MFCD00065690
Molecular Weight 153.14
MOL File 123333-53-9.mol
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Chemical Properties

Appearance White to off-white powder
Melting point  155-158 °C(lit.)
Boiling point  248.8°C (rough estimate)
density  1.065 g/cm
refractive index  1.6910 (estimate)
storage temp.  Store at RT.
solubility  DMF: 100 mg/mL, clear
Water Solubility  slightly soluble
Usage A common additive for peptide coupling.
Detection Methods HPLC,NMR
BRN  4515
CAS DataBase Reference 123333-53-9(CAS DataBase Reference)
Storage Precautions Heat sensitive

Safety Data

Hazard Codes  F
Risk Statements 
R5:Heating may cause an explosion.
R11:Highly Flammable.
Safety Statements 
S15:Keep away from heat .
S16:Keep away from sources of ignition-No smoking .
S35:This material and its container must be disposed of in a safe way .
S7/9:Keep container tightly closed and in a well-ventilated place .
S33:Take precautionary measures against static discharges .
RIDADR  UN 3380 4.1/PG 1
WGK Germany  -
F  4.10-8
Hazard Note  Highly Flammable
HS Code  29339900

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