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2646-90-4

Basic Information
CAS No.: 2646-90-4
Name: 2,5-Difluorobenzaldehyde
Article Data: 3
Molecular Structure:
Molecular Structure of 2646-90-4 (2,5-Difluorobenzaldehyde)
Formula: C7H4F2O
Molecular Weight: 142.105
Synonyms: 2,5-fluorobenzaldehyde;
EINECS: -0
Density: 1.297 g/cm3
Melting Point: 67-69 °C
Boiling Point: 175.3 °C at 760 mmHg
Flash Point: 58.9 °C
Appearance: Colorless transparent liquid
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36-37/39-36/37
Transport Information: UN 1989 3/PG 3
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  • 2,5-Difluorobenzaldehyde 2646-90-4

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Chemistry

The Molecular formula of  2,5-Difluorobenzaldehyde(2646-90-4) : C7H4F2O
The Molecular Weight of 2,5-Difluorobenzaldehyde(2646-90-4) : 142.1
Molecular Structure : 
Flash point: 138 °F
Boiling point:  67-69 °C17 mm Hg(lit.)
density:  1.308 g/mL at 25 °C(lit.)
refractive index:  n20/D 1.498(lit.)
Sensitive:  Air Sensitive 
IUPAC Name: 2,5-difluorobenzaldehyde
Synonyms: TIMTEC-BB SBB006570;2,5-DIFLUOROBENZALDEHYDE;2,5-Difluorobenzaldehyde 98%;2,5-Difluorobenzaldehyde98%;2,5-DIFLUOROBENZALDEHYDE 99+%

Uses

2,5-Difluorobenzaldehyde(2646-90-4) is used for medicine,pesticide and the intermediate of Liquid Crystal Materials.

Toxicity Data With Reference

1、RTECS#: CAS# 2646-90-4: None listed 
2、LD50/LC50: RTECS: Not available. 
3、Carcinogenicity: 2,5-Difluorobenzaldehyde - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. 
4、Other: The toxicological properties have not been fully investigated. 
 

Safety Profile

The Hazard Codes of  2,5-Difluorobenzaldehyde(2646-90-4) :  Xi
Hazard Note:  Irritant
HazardClass:  3.2
The Risk Statements information of  2,5-Difluorobenzaldehyde(2646-90-4) : 
36/37/38:  Irritating to eyes, respiratory system and skin 
The Safety Statements information of  2,5-Difluorobenzaldehyde(2646-90-4) : 
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36:  Wear suitable protective clothing 
36/37:  Wear suitable protective clothing and gloves 
37/39:  Wear suitable gloves and eye/face protection 
RIDADR:  UN 1989 3/PG 3
WGK Germany:  3
PackingGroup:  III

Specification

(1):Fire Fighting Measures of  2,5-Difluorobenzaldehyde(2646-90-4):
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Vapors can travel to a source of ignition and flash back. Combustible liquid. 
Extinguishing Media: Use WATER spray, dry chemical, CARBON dioxide, or chemical foam.
(2):Handling and Storage of  2,5-Difluorobenzaldehyde(2646-90-4):
Handling: Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. 
Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container.