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2,5-Difluorobenzaldehyde

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Origin: China

Cas No: 2646-90-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 2646-90-4 Formula: C7H4F2O Molecular Weight: 142.10300

Basic Info

Chemical Name	2,5-Difluorobenzaldehyde
Synonyms	2,5-difluoro benzaldehyde; 2,5-Difluor-benzaldehyd; 2,5-fluorobenzaldehyde; 2,4-DIFLUOROBENZAMIDOXIME; 5-fluoro-2-fluorobenzaldehyde;
CAS No.	2646-90-4
Molecular Formula	C7H4F2O
Molecular Weight	142.10300
PSA	17.07000
LogP	1.77730

Properties

Appearance & Physical State	Colorless transparent liquid
Density	1.308
Boiling Point	67-69ºC (17 mmHg)
Flash Point	58ºC
Refractive Index	1.498-1.5
Vapor Pressure	1.16mmHg at 25°C

Safety Info

Hazard Class	3.2
Safety Statements	S26-S37/39
HS Code	2912210000
Packing Group	III
WGK Germany	3
RIDADR	UN 1989
Risk Statements	R36/37/38
Hazard Codes	Xi
Caution Statement	P261; P305 + P351 + P338
Hazard Declaration	H226; H315; H319; H335
Symbol	GHS02, GHS07
Signal Word	Warning

Synthesis Route

butyllithium+1,4-difluorobenzene→2,5-Difluorobenzaldehyde
acetoxy-2,5-difluorophenylacetonitrile→2,5-Difluorobenzaldehyde
1,4-difluorobenzene+N-Methylformanilide→2,5-Difluorobenzaldehyde

Precursor

N-Methylformanilide
butyllithium
1,4-difluorobenzene
2,5-Difluorotoluene

Downstream Product

5-Fluoro-1-benzothiophene-2-carbaldehyde
5-Fluoro-1-benzothiophene-2-carboxylic acid
N-[(2,5-difluorophenyl)methylidene]hydroxylamine
5-Fluorobenzo[b]thiophene

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