Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,4′-difluorobenzophenone
Price: Check
Purity: 99.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4,4′-difluorobenzophenone
Price: ￥278.0/100g ￥98.0/25g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Bis(4-fluorophenyl)methanone
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

345-92-6

345-92-6 structure

345-92-6 structure

Name: 4,4′-difluorobenzophenone
Chemical Name: bis(4-fluorophenyl)methanone
CAS Number: 345-92-6
Molecular Formula: C₁₃H₈F₂O
Molecular Weight: 218.199
Catalog: Chemical reagent Organic reagent Aromatic ketone
Create Date: 2018-04-06 08:00:00
Modify Date: 2025-08-20 18:28:47

Name	bis(4-fluorophenyl)methanone
Synonyms	p,p'-Difluorobenzophenone Di-p-fluorophenyl ketone Methanone, bis(4-fluorophenyl)- 4,4‘-Difluorobenzophenone Bis(4-fluorophenyl)methanone EINECS 206-466-3 4-fluorophenyl ketone Bis(4-Fluorophenyl)-Methanone 4.4'-difluorobenzophenone 4,4'-Difluorobenzophenone p-Fluorophenyl ketone 4,4′-difluorobenzophenone di(4-fluorophenyl)methanone MFCD00000353

Density	1.2±0.1 g/cm3
Boiling Point	308.8±27.0 °C at 760 mmHg
Melting Point	102-105 °C(lit.)
Molecular Formula	C₁₃H₈F₂O
Molecular Weight	218.199
Flash Point	118.4±17.9 °C
Exact Mass	218.054321
PSA	17.07000
LogP	3.62
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.550

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DJ0685000

CHEMICAL NAME :: Benzophenone, 4,4'-difluoro-

CAS REGISTRY NUMBER :: 345-92-6

BEILSTEIN REFERENCE NO. :: 0516231

LAST UPDATED :: 199709

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C13-H8-F2-O

MOLECULAR WEIGHT :: 218.21

WISWESSER LINE NOTATION :: FR DVR DF

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 56 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#04689

Symbol	GHS07, GHS09
Signal Word	Warning
Hazard Statements	H302-H315-H319-H335-H411
Precautionary Statements	P261-P273-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	UN 3077 9 / PGIII
WGK Germany	3
RTECS	DJ0685000
Packaging Group	I; II; III
HS Code	2914700090

Precursor 10
1093981-40-8 1765-93-1 403-43-0 365-24-2
457-68-1 90-98-2 67-71-0 459-57-4
3988-03-2 79-37-8
DownStream 10
457-68-1 456-22-4 379-57-7 16574-54-2
90-94-8 198889-20-2 365-24-2 90-96-0
345-89-1 345-90-4

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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