1-(4-Chlorophenyl)ethanone

Modify Date: 2026-07-23 18:46:52

1-(4-Chlorophenyl)ethanone Structure
1-(4-Chlorophenyl)ethanone structure
Common Name 1-(4-Chlorophenyl)ethanone
CAS Number 99-91-2 Molecular Weight 154.594
Density 1.2±0.1 g/cm3 Boiling Point 237.7±13.0 °C at 760 mmHg
Molecular Formula C8H7ClO Melting Point 74-76 °C(lit.)
MSDS USA Flash Point 107.1±11.0 °C
Symbol GHS05 GHS06
GHS05, GHS06
Signal Word Danger

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 4'-Chloroacetophenone
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.2±0.1 g/cm3
Boiling Point 237.7±13.0 °C at 760 mmHg
Melting Point 74-76 °C(lit.)
Molecular Formula C8H7ClO
Molecular Weight 154.594
Flash Point 107.1±11.0 °C
Exact Mass 154.018539
PSA 17.07000
LogP 2.35
Vapour Pressure 0.0±0.5 mmHg at 25°C
Index of Refraction 1.532
InChIKey BUZYGTVTZYSBCU-UHFFFAOYSA-N
SMILES CC(=O)c1ccc(Cl)cc1
Water Solubility 111 mg/L (25 ºC)

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
KM5600000
CHEMICAL NAME :
Ethanone, 1-(4-chlorophenyl)-
CAS REGISTRY NUMBER :
99-91-2
BEILSTEIN REFERENCE NO. :
0386014
LAST UPDATED :
199709
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C8-H7-Cl-O
MOLECULAR WEIGHT :
154.60
WISWESSER LINE NOTATION :
GR DV1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Human
DOSE/DURATION :
1 mg/m3/1M
TOXIC EFFECTS :
Sense Organs and Special Senses (Olfaction) - effect, not otherwise specified Sense Organs and Special Senses (Eye) - lacrimation Sense Organs and Special Senses (Eye) - effect, not otherwise specified
REFERENCE :
27ZZA9 "Manual of Pharmacology and Its Applications to Therapeutics and Toxicology," 8th ed., Sollman, T., Philadelphia, W.B. Saunders Co., 1957 Volume(issue)/page/year: 8,192,1957
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1207 mg/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral - muscle weakness Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
PHARAT Pharmazie. (VEB Verlag Volk und Gesundheit, Neue Gruenstr. 18, Berlin DDR-1020, Ger. Dem. Rep.) V.1- 1946- Volume(issue)/page/year: 31,317,1976
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1752 mg/m3/15M
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JJATDK JAT, Journal of Applied Toxicology. (John Wiley & Sons Ltd., Baffins Lane, Chichester, W. Sussex PO19 1UD, UK) V.1- 1981- Volume(issue)/page/year: 14,411,1994
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
87600 ug/m3/15M/10D-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - acute pulmonary edema Endocrine - hyperglycemia Endocrine - changes in spleen weight
REFERENCE :
JJATDK JAT, Journal of Applied Toxicology. (John Wiley & Sons Ltd., Baffins Lane, Chichester, W. Sussex PO19 1UD, UK) V.1- 1981- Volume(issue)/page/year: 14,411,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7067 No. of Facilities: 7 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 28 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS05 GHS06
GHS05, GHS06
Signal Word Danger
Hazard Statements H302-H315-H318-H330-H335
Precautionary Statements P260-P280-P284-P305 + P351 + P338-P310
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes T+,Xn
Risk Phrases R26;R36/37/38
Safety Phrases S26-S28-S36/37/39-S45-S28A
RIDADR UN 3416 6.1/PG 2
WGK Germany 3
RTECS KM5600000
Packaging Group II
Hazard Class 6.1
HS Code 29147090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

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%

 Articles5

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Screening of microorganisms producing cold-active oxidoreductases to be applied in enantioselective alcohol oxidation. An Antarctic survey.

Mar. Drugs 9 , 889-905, (2011)

Several microorganisms were isolated from soil/sediment samples of Antarctic Peninsula. The enrichment technique using (RS)-1-(phenyl)ethanol as a carbon source allowed us to isolate 232 psychrophile/...

Thienylhalomethylketones: Irreversible glycogen synthase kinase 3 inhibitors as useful pharmacological tools

Bioorg. Med. Chem. 17 , 6914-25, (2009)

Thienylhalomethylketones, whose chemical, biological, and pharmaceutical data are here reported, are the first irreversible inhibitors of GSK-3beta described to date. Their inhibitory activity is like...

Optimization of culture conditions to produce high yields of active Acetobacter sp. CCTCC M209061 cells for anti-Prelog reduction of prochiral ketones.

BMC Biotechnol. 11 , 110, (2011)

Chiral alcohols are widely used in the synthesis of chiral pharmaceuticals, flavors and functional materials and appropriate whole-cell biocatalysts offer a highly enantioselective, minimally pollutin...

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

4-acetylchlorobenzene
P-CHLOROACETOPHENONE
MFCD00000622
1-(4-chlorophenyl)ethan-1-one
1-(4-Chlorophenyl)ethanone
EINECS 202-800-7
4′-Chloroacetophenone
CHLOROACETOPHENONE-4
Acetophenone, 4'-chloro- (8CI)
4-Chloroacetophenone
4'-Chloroacetophenone
4-chlorophenyl methyl ketone
p-Chloracetophenone
usafdo-1
para-chloroacetophenone

 1-(4-Chlorophenyl)ethanone | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular weight of 4'-Chloroacetophenone?
A: Molecular weight of 4'-Chloroacetophenone is 154.594.
Q: What English synonyms does 4'-Chloroacetophenone have?
A: English synonyms of 4'-Chloroacetophenone: 4-acetylchlorobenzene, P-CHLOROACETOPHENONE, MFCD00000622, 1-(4-chlorophenyl)ethan-1-one, 1-(4-Chlorophenyl)ethanone, EINECS 202-800-7, 4′-Chloroacetophenone, CHLOROACETOPHENONE-4, Acetophenone, 4'-chloro- (8CI), 4-Chloroacetophenone, 4'-Chloroacetophenone, 4-chlorophenyl methyl ketone, p-Chloracetophenone, usafdo-1, para-chloroacetophenone.
Q: What are the upstream materials of 4'-Chloroacetophenone?
A: Related upstream materials(CAS) of 4'-Chloroacetophenone: 873-73-4;99-90-1;1712-70-5;64-19-7;108-90-7;3391-10-4;14804-61-6;536-38-9;57845-08-6;637-87-6.
Q: What is the molecular formula of 4'-Chloroacetophenone?
A: Molecular formula of 4'-Chloroacetophenone is C8H7ClO.
Q: What is the safety information for 4'-Chloroacetophenone?
A: Safety information for 4'-Chloroacetophenone: S26-S28-S36/37/39-S45-S28A.
Q: What is the SMILES notation of 4'-Chloroacetophenone?
A: SMILES notation of 4'-Chloroacetophenone is CC(=O)c1ccc(Cl)cc1.
Q: What is the CAS number of 4'-Chloroacetophenone?
A: CAS number of 4'-Chloroacetophenone is 99-91-2.
Q: What is the polar surface area (PSA) of 4'-Chloroacetophenone?
A: Polar surface area (PSA) of 4'-Chloroacetophenone is 17.07000.
Q: What is the melting point of 4'-Chloroacetophenone?
A: Melting point of 4'-Chloroacetophenone is 74-76 °C(lit.).
Q: What is the InChIKey of 4'-Chloroacetophenone?
A: InChIKey of 4'-Chloroacetophenone is BUZYGTVTZYSBCU-UHFFFAOYSA-N.

 1-(4-Chlorophenyl)ethanonefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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