Pharmaceutical Materials

CAS No.611-20-1

Names and Identifiers

Name	2-Cyanophenol
Synonyms	2-Cyanophenol O-CYANOPHENOL o-cyanophenol 2-cyano phenol Salicylonitrile SALICYLONITRILE Salicylic nitrile 2-Hydroxy-benzonitril O-HYDROXYBENZONITRILE 2-Hydroxybenzonitrile 2-Hydroxy benzonitrile SALICYLIC ACID NITRILE O-hydroxybanzo nitrile 2-CYANOPHENOL (2-HYDROXYBENZONITRILE)
CAS	611-20-1
EINECS	210-259-3
InChI	InChI=1/C7H5NO/c8-5-6-3-1-2-4-7(6)9/h1-4,9H

611-20-1 – Physico-chemical Properties

Molecular Formula	C7H5NO
Molar Mass	119.12
Density	1.1052
Melting Point	92-95 °C (lit.)
Boling Point	149 °C/14 mmHg (lit.)
Flash Point	149°C/14mm
Water Solubility	soluble
Solubility	Chloroform (Sparingly), Methanol (Slightly)
Vapor Presure	0.17Pa at 25℃
Appearance	White to bright yellow crystalline powder
Color	Off-white to brown
BRN	1210029
pKa	6.86(at 25℃)
Storage Condition	Inert atmosphere,Room Temperature
Stability	Stable. Incompatible with strong oxidizing agents, strong bases.
Refractive Index	1.5372
MDL	MFCD00002145
Physical and Chemical Properties	Crystallization. Melting point 92-95 °c (102-102.5 °c), boiling point 149 °c/1.9kPa(14mmHg).
Use	Used as a pharmaceutical Intermediate

611-20-1 – Risk and Safety

Risk Codes	R22 – Harmful if swallowed R36/37/38 – Irritating to eyes, respiratory system and skin. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed.
Safety Description	S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 – Wear suitable protective clothing. S45 – In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
UN IDs	3276
WGK Germany	3
TSCA	Yes
HS Code	29269095
Hazard Note	Irritant
Hazard Class	6.1
Packing Group	III

 

Attribute	Details
Name	2-Cyanophenol
CAS Number	611-20-1
Synonyms	Salicylonitrile; 2-Hydroxybenzonitrile; o-Cyanophenol; 2-Hydroxy-benzonitril; o-Hydroxybenzonitrile; 2-Cyanophenol (Salicylonitrile); 2-Hydroxy-benzonitrile (Salicylonitrile); 2-cyanophenol (free base)
Molecular Formula	C7H5NO
Molecular Weight	119.12 g/mol
EINECS Number	210-259-3
Appearance	Transparent to pale white powder or crystalline solid
Physical Properties
– Density	1.22 g/cm³ at 25°C
– Melting Point	95-98°C
– Boiling Point	273.1°C at 760 mmHg
– Flash Point	109.6°C
– Solubility	Soluble in water and organic solvents
Chemical Properties	Colorless to pale yellow; stable under normal conditions; may decompose under heat to produce toxic fumes including nitrogen oxides and carbon monoxide
Applications	Used as an important intermediate in the pharmaceutical, pesticide, fragrance, and liquid crystal industries; specifically, it is a key intermediate in the synthesis of the pesticide pyrimethanil, which is widely used as a fungicide; also used in the synthesis of bunolol and other chemicals
Packaging	Available in various packaging sizes, commonly sold in quantities such as 1g, 5g, 100g, or larger bulk quantities
Storage Conditions	Store in a cool, dry, and well-ventilated area; keep away from heat, sparks, and open flames; protect from moisture and incompatible materials
Safety Information	Harmful if swallowed or inhaled; may cause skin and eye irritation; handle with appropriate protective equipment and follow good industrial hygiene practices; refer to the Material Safety Data Sheet (MSDS) for detailed safety information

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