IUPAC Name: Catecholborane
Synonyms of Catecholborane (CAS NO.274-07-7): Catecholborane
CAS NO: 274-07-7
Molecular Formula: C₆H₅BO₂
Molecular Weight: 119.91
Molecular Structure:
EINECS:  205-991-5
H bond acceptors:  2 
H bond donors:  0 
Freely Rotating Bonds:  0 
Polar Surface Area:  18.46 Å² 
Flash Point:  27.213 °C 
Enthalpy of Vaporization:  34.459 kJ/mol 
Boiling Point:  121.385 °C at 760 mmHg 
Vapour Pressure:  17.554 mmHg at 25°C
Melting Point: 12 °C(lit.)
Storage temp:  2-8°C
Sensitive:  Moisture Sensitive
Appearance: clear colorless solution. 
SMILES: c1cccc2OBOc12
InChI: InChI=1/C6H5BO2/c1-2-4-6-5(3-1)8-7-9-6/h1-4,7H
InChIKey: CENMEJUYOOMFFZ-UHFFFAOYAI 
Std. InChI: InChI=1S/C6H5BO2/c1-2-4-6-5(3-1)8-7-9-6/h1-4,7H
Std. InChIKey: CENMEJUYOOMFFZ-UHFFFAOYSA-N
Product Categories of Catecholborane (CAS NO.274-07-7): BoranesOrganometallic Reagents;Boronic Acids and Derivatives;Borylation Reagents;Reduction;Synthetic Reagents

Hazard Codes: F,C
Risk Statements: 11-19-34-67-65-63-48/20-14
 R11: Highly flammable. 
R14 : Reacts violently with water. 
R19: May form explosive peroxides. 
R34: Causes burns.
R48/20: Harmful: danger of serious damage to health by prolonged exposure through inhalation 
R63: Possible risk of harm to the unborn child. 
R65: Harmful: may cause lung damage if swallowed. 
R67:Vapours may cause drowsiness and dizziness.
Safety Statements: 26-36/37/39-45-62-16-43
S16: Keep away from sources of ignition. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S43: In case of fire use ... (there follows the type of fire-fighting equipment to be used.) 
S62: If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label.
RIDADR: UN 2924 3/PG 2
WGK Germany: 3
F: 1-10
HazardClass: 3
PackingGroup: II

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Reacts violently with water giving off flammable gas which may explode. Vapors can travel to a source of ignition and flash back. Will burn if involved in a fire.
Extinguishing Media: Use dry chemical. 
Handling: Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Storage: Keep Catecholborane (CAS NO.274-07-7) away from sources of ignition. Store in a tightly closed container. Store in a dry area. Keep under a nitrogen blanket. Refrigerator/flammables.