甲基-1,1'-联苯

Description

methyl-1,1'-biphenyl · CAS 28652-72-4 · C13H12. UNII X937MQ8S1T. Boiling Point: 255.3 °C; Vapor Pressure: 0.3 [mmHg]; Vapor Pressure: 0.02 [mmHg].

Identification

CAS Registry Number	28652-72-4
PubChem CID	12563
Molecular formula	C13H12
IUPAC name	1-methyl-2-phenylbenzene
UNII (FDA)	X937MQ8S1T

Computed Descriptors

Molecular Weight	168.23
XLogP3	3.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	1
Exact Mass	168.093900383
Monoisotopic Mass	168.093900383
Topological Polar Surface Area	0
Heavy Atom Count	13
Formal Charge	0

Physical & Chemical Properties

Boiling Point	255.3 °C
Vapor Pressure	0.3 [mmHg]
Vapor Pressure	0.02 [mmHg]

Physical description & handling notes

• Clear light yellow liquid; [CAMEO]
• Colorless liquid; [Alfa Aesar MSDS]
• Melting point: 2-methyl: -0.2 °C; 3-methyl: 4.5 °C; 4-methyl: 49-50 °C.
• Sure Sol-170: 180 °F closed cup Sure Sol-175: 175 °F closed cup /Sure sol-170: 38% methylbiphenyls, 25% biphenyl, 37% dimethyl naphthalenes; sure sol-175 55% methylbiphenyls, 14% biphenyl, and 31% other C12+ aromatic hydrocarbons/
• Insoluble in water.
• Sure Sol-170 boiling: 254-266 °C; vapor density: >5.0; specific gravity 1.000. /Sure Sol-170 contains 55% methylbiphenyls, 14% biphenyl, 31% other C12+ aromatic hydrocarbons by weight/

GHS Hazard Classification

Reported hazard statements	H315 (100%), H319 (100%), H335 (98.7%)

Documented Uses

• Found in the essential oil of rue root (Ruta graveolens) and crude oil; Used as a dye carrier; [HSDB]
• Sure Sol-177 (80% methylbiphenyl) is used in fluid heat transfer industry.
• Sure Sol-175 used as a dye carrier in the textile industry.
• (1977): 1-10 million lb by Sun Petroleum Prod Corp
• (1983) 340,000 lb methylbiphenyl produced.
• Manufactured in a closed system.

Synonyms

2-METHYLBIPHENYL; 2-Phenyltoluene; 2-Methyl-1,1'-biphenyl; 1-Methyl-2-phenylbenzene; o-Methylbiphenyl; o-Phenyltoluene; Biphenyl, 2-methyl-; 1,1'-Biphenyl, 2-methyl-; UNII-X937MQ8S1T; X937MQ8S1T; NSC 5321; DTXSID10881160; NSC-5321; EINECS 211-400-1; ALLIZEAXNXSFGD-UHFFFAOYSA-; oMethylbiphenyl

Frequently Asked Questions

What are the CAS number and molecular formula of methyl-1,1'-biphenyl?

CAS 28652-72-4; molecular formula C13H12; molecular weight — g/mol.

What other names is methyl-1,1'-biphenyl known by?

2-METHYLBIPHENYL, 2-Phenyltoluene, 2-Methyl-1,1'-biphenyl, 1-Methyl-2-phenylbenzene, o-Methylbiphenyl, o-Phenyltoluene.

Is methyl-1,1'-biphenyl classified as hazardous?

Hazard statements reported: H315, H319, H335.

What are the key physical properties of methyl-1,1'-biphenyl?

Boiling Point: 255.3 °C; Vapor Pressure: 0.3 [mmHg]; Vapor Pressure: 0.02 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.