5-Phenyl-1,3,4-oxadiazol-2(3H)-one

Modify Date: 2026-07-17 20:09:03

5-Phenyl-1,3,4-oxadiazol-2(3H)-one Structure
5-Phenyl-1,3,4-oxadiazol-2(3H)-one structure
 Common Name 5-Phenyl-1,3,4-oxadiazol-2(3H)-one
CAS Number 1199-02-6 Molecular Weight 162.14500
Density 1.38g/cm3 Boiling Point 242.1ºC at 760mmHg
Molecular Formula C8H6N2O2 Melting Point N/A
MSDS N/A Flash Point 115.6ºC

 Names

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

Name 5-phenyl-3H-1,3,4-oxadiazol-2-one
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 1.38g/cm3
Boiling Point 242.1ºC at 760mmHg
Molecular Formula C8H6N2O2
Molecular Weight 162.14500
Flash Point 115.6ºC
Exact Mass 162.04300
PSA 58.89000
LogP 1.02990
Vapour Pressure 2.06E-05mmHg at 25°C
Index of Refraction 1.646
InChIKey RFJQGIYJJLWZJP-UHFFFAOYSA-N
SMILES O=c1[nH]nc(-c2ccccc2)o1

 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 :
RO0900000
CHEMICAL NAME :
delta(sup 2)-1,3,4-Oxadiazolin-5-one, 2-phenyl-
CAS REGISTRY NUMBER :
1199-02-6
LAST UPDATED :
199009
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C8-H6-N2-O2
MOLECULAR WEIGHT :
162.16
WISWESSER LINE NOTATION :
T5NMVOJ ER

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1520 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 9,478,1966

 Safety Information

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

HS Code 2934999090

 Customs

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

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 5-Phenyl-1,3,4-oxadiazol-2(3H)-oneBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Displacement of [3H]-neurotensin from human His6-tagged sortilin pretreated for 30 mi...
Source: ChEMBL
Target: Sortilin
External Id: CHEMBL4030310
Name: Inhibition of human recombinant N-terminal His-tagged DDO expressed in Escherichia co...
Source: ChEMBL
Target: D-aspartate oxidase
External Id: CHEMBL2327933
Name: Discovery of Small Molecules to Inhibit Human Cytomegalovirus Nuclear Egress
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: HCMV UL50
External Id: HMS1262
Name: Inhibition of human recombinant N-terminal His-tagged DAO expressed in Escherichia co...
Source: ChEMBL
Target: D-amino-acid oxidase
External Id: CHEMBL2327932
Name: Inhibition of human recombinant N-terminal His-tagged DAO expressed in Escherichia co...
Source: ChEMBL
Target: D-amino-acid oxidase
External Id: CHEMBL2327931
Name: Chemical Probes of Kaposi's Sarcoma Herpes Virus Latent Infection
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: ORF 73 [Human herpesvirus 8 type M]
External Id: HMS791
Name: Inhibition of human recombinant N-terminal His-tagged serine racemase expressed in Es...
Source: ChEMBL
Target: Serine racemase
External Id: CHEMBL2327930
Name: A screen for compounds that inhibit the activity of LtaS in Staphylococcus aureus
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
External Id: HMS979
Name: A screen for compounds that inhibit viral RNA polymerase binding and polymerization a...
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: Chain A, Poliovirus Polymerase With Gtp
External Id: HMS750
Name: Inhibition of human Notum (S81-T451 residues) C330S mutant expressed in HEK293S cells...
Source: ChEMBL
Target: Palmitoleoyl-protein carboxylesterase NOTUM
External Id: CHEMBL4704588
Total 16, Current Page 1 of 2
1
2

 Synonyms

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

5-phenyl-1,3,4-oxadiazol-2-ol
5-Phenyl-3H-1,3,4-oxadiazol-2-one
phenyloxadiazolol
2-Phenyl-1,3,4-oxadiazol-5-one
1,3,4-OXADIAZOL-2(3H)-ONE, 5-PHENYL
2-PHENYL-1,3,4-OXADIAZOL-2-IN-5-ONE

 5-Phenyl-1,3,4-oxadiazol-2(3H)-one | FAQ

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

Q: What is the LogP of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: LogP of 5-phenyl-3H-1,3,4-oxadiazol-2-one is 1.02990.
Q: What are the downstream products of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: Related downstream products(CAS) of 5-phenyl-3H-1,3,4-oxadiazol-2-one: 41125-77-3;615-16-7;613-94-5;102-07-8;603-54-3;555-96-4;1134-56-1;1152-32-5;13633-26-6.
Q: What is the molecular formula of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: Molecular formula of 5-phenyl-3H-1,3,4-oxadiazol-2-one is C8H6N2O2.
Q: What English synonyms does 5-phenyl-3H-1,3,4-oxadiazol-2-one have?
A: English synonyms of 5-phenyl-3H-1,3,4-oxadiazol-2-one: 5-phenyl-1,3,4-oxadiazol-2-ol, 5-Phenyl-3H-1,3,4-oxadiazol-2-one, phenyloxadiazolol, 2-Phenyl-1,3,4-oxadiazol-5-one, 1,3,4-OXADIAZOL-2(3H)-ONE, 5-PHENYL, 2-PHENYL-1,3,4-OXADIAZOL-2-IN-5-ONE.
Q: What is the InChIKey of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: InChIKey of 5-phenyl-3H-1,3,4-oxadiazol-2-one is RFJQGIYJJLWZJP-UHFFFAOYSA-N.
Q: What is the polar surface area (PSA) of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: Polar surface area (PSA) of 5-phenyl-3H-1,3,4-oxadiazol-2-one is 58.89000.
Q: What is the boiling point of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: Boiling point of 5-phenyl-3H-1,3,4-oxadiazol-2-one is 242.1ºC at 760mmHg.
Q: What is the molecular weight of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: Molecular weight of 5-phenyl-3H-1,3,4-oxadiazol-2-one is 162.14500.
Q: What is the SMILES notation of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: SMILES notation of 5-phenyl-3H-1,3,4-oxadiazol-2-one is O=c1[nH]nc(-c2ccccc2)o1.
Q: What is the English name of 5-phenyl-3H-1,3,4-oxadiazol-2-one?
A: The English name of 5-phenyl-3H-1,3,4-oxadiazol-2-one is 5-phenyl-3H-1,3,4-oxadiazol-2-one.

 5-Phenyl-1,3,4-oxadiazol-2(3H)-onefactory

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

Dayang Chem (Hangzhou) Co., Ltd.
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Chemsrc provides 5-Phenyl-1,3,4-oxadiazol-2(3H)-one(CAS#:1199-02-6) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 5-Phenyl-1,3,4-oxadiazol-2(3H)-one are included as well.>> amp version: 5-Phenyl-1,3,4-oxadiazol-2(3H)-one

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