甲基环戊二烯二聚体

Description

Methylcyclopentadiene dimer · CAS 26472-00-4 · C12H16. Boiling Point: 392 °F at 760 mmHg (USCG, 1999); Boiling Point: 200 °C @760 [mm Hg]; Melting Point: -59.8 °F (USCG, 1999).

Identification

CAS Registry Number	26472-00-4
PubChem CID	3033878
Molecular formula	C12H16
IUPAC name	4,5-dimethyltricyclo[5.2.1.02,6]deca-3,8-diene

Computed Descriptors

Molecular Weight	160.25
XLogP3	2.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	160.125200510
Monoisotopic Mass	160.125200510
Topological Polar Surface Area	0
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Boiling Point	392 °F at 760 mmHg (USCG, 1999)
Boiling Point	200 °C @760 [mm Hg]
Melting Point	-59.8 °F (USCG, 1999)
Flash Point	80 °F (USCG, 1999)
Density	0.941 @25 °C
Vapor Pressure	14.2 [mmHg]
Vapor Pressure	7.5 [mm Hg] @47.8 °C

Physical description & handling notes

• Methylcyclopentadiene dimer, [liquid] appears as a colorless liquid. Slightly less dense than water and insoluble in water. Hence floats on water.
• Liquid
• Colorless liquid; [CAMEO] Pale yellow liquid with a hydrocarbon odor; [ExxonMobil MSDS]
• 0.941 (USCG, 1999) - Less dense than water; will float

Documented Uses

• Used to make fine chemicals; [ExPub: ECHA REACH Registrations] Used as a chemical feedstock; [ExxonMobil MSDS]
• 4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydrodimethyl-: ACTIVE

Synonyms

Dimethyldicyclopentadiene; 3a,4,7,7a-Tetrahydrodimethyl-4,7-methanoindene; Bis(methylcyclopentadiene); 4,7-Methanoindene, 3a,4,7,7a-tetrahydrodimethyl-; DTXSID3027902; RefChem:818556; 247-724-5; 26472-00-4; 4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydrodimethyl-; Methylcyclopentadiene dimer; 4,5-dimethyltricyclo[5.2.1.02,6]deca-3,8-diene; SCHEMBL30380948; DTXSID80274242; GUOAPVPPPVLIQQ-UHFFFAOYSA-N; LS-14088; 3a.4.7.7a-Tetrahydrodimethyl-4.7-methanoindene

Frequently Asked Questions

What are the CAS number and molecular formula of Methylcyclopentadiene dimer?

CAS 26472-00-4; molecular formula C12H16; molecular weight — g/mol.

What other names is Methylcyclopentadiene dimer known by?

Dimethyldicyclopentadiene, 3a,4,7,7a-Tetrahydrodimethyl-4,7-methanoindene, Bis(methylcyclopentadiene), 4,7-Methanoindene, 3a,4,7,7a-tetrahydrodimethyl-, DTXSID3027902, RefChem:818556.

What are the key physical properties of Methylcyclopentadiene dimer?

Boiling Point: 392 °F at 760 mmHg (USCG, 1999); Boiling Point: 200 °C @760 [mm Hg]; Melting Point: -59.8 °F (USCG, 1999); Flash Point: 80 °F (USCG, 1999).

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.