Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,2-Ethanedione,1,2-bis(4-fluorophenyl)-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

579-39-5

579-39-5 structure

579-39-5 structure

Name: 1,2-Bis(4-fluorophenyl)-1,2-ethanedione
Chemical Name: 4,4'-difluorobenzil
CAS Number: 579-39-5
Molecular Formula: C₁₄H₈F₂O₂
Molecular Weight: 246.209
Create Date: 2018-04-25 08:00:00
Modify Date: 2026-07-01 16:55:33

Name	4,4'-difluorobenzil
Synonyms	4,4'-DIFLUOROBENZIL 4,4'-Difluorobibenzoyl 4,4'-Difluorodibenzoyl 1,2-Ethanedione, 1,2-bis(4-fluorophenyl) 4,4'-DIFLUOROBIBENZOYL 4,4'- difluorobenzoyl Ethanedione, bis(4-fluorophenyl) p,p'-Difluorobenzil 1,2-bis(4-fluorophenyl)ethane-1,2-dione BIS(P-FLUOROPHENYL)ETHANEDIONE 4,4'-Difluorobenzil> 4,4'-Difluorodibenzoyl 1-[anilino(oxo)methyl]-3-methyl-1,3-diphenylurea 4,4'-FLUOROBENZIL 4,4'-DIFLUOROBENZIL ISO 9001：2015 REACH MFCD00134541

Density	1.3±0.1 g/cm3
Boiling Point	370.2±27.0 °C at 760 mmHg
Melting Point	120-122 °C(lit.)
Molecular Formula	C₁₄H₈F₂O₂
Molecular Weight	246.209
Flash Point	141.5±17.9 °C
Exact Mass	246.049240
PSA	34.14000
LogP	3.82
Vapour Pressure	0.0±0.8 mmHg at 25°C
Index of Refraction	1.562

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2914700090

Precursor 9
53458-16-5 459-57-4 24133-58-2 2751-90-8
3457-46-3 1493-23-8 106675-70-1 366-68-7
71-36-3
DownStream 9
107680-02-4 107680-01-3 107659-75-6 107659-51-8
58547-67-4 366-68-7 4100-99-6 3457-46-3
24133-58-2

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

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