2,3,4-Trimethylpentane

2,3,4-Trimethylpentane
Names
	Preferred IUPAC name 2,3,4-Trimethylpentane
Identifiers
CAS Number	565-75-3 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1696869
ChEBI	CHEBI:165735;
ChemSpider	10795 ;
ECHA InfoCard	100.008.448
EC Number	209-292-6;
MeSH	2,3,4-trimethylpentane
PubChem CID	11269;
RTECS number	SA3321500;
UNII	WOJ1QVR6OA ;
UN number	3295
CompTox Dashboard (EPA)	DTXSID6060343 ;
	InChI InChI=1S/C8H18/c1-6(2)8(5)7(3)4/h6-8H,1-5H3 Key: RLPGDEORIPLBNF-UHFFFAOYSA-N ;
	SMILES CC(C)C(C)C(C)C;
Properties
Chemical formula	C8H18
Molar mass	114.232 g·mol−1
Appearance	Colourless liquid
Odor	Odourless
Density	719 mg mL−1
Melting point	−109.7 to −109.0 °C; −165.5 to −164.1 °F; 163.4 to 164.2 K
Boiling point	113.4 to 114.0 °C; 236.0 to 237.1 °F; 386.5 to 387.1 K
Vapor pressure	6.7549 kPa (at 37.7 °C)
Henry's law; constant (kH)	5.6 nmol Pa−1 kg−1
Refractive index (nD)	1.404
Thermochemistry
Heat capacity (C)	247.32 J K−1 mol−1
Std molar; entropy (S⦵298)	329.32 J K−1 mol−1
Std enthalpy of; formation (ΔfH⦵298)	−256.9–−253.5 kJ mol−1
Std enthalpy of; combustion (ΔcH⦵298)	−5.4671–−5.4639 MJ mol−1
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H304, H315, H336, H410
Precautionary statements	P210, P261, P273, P301+P310, P331
Flash point	4 °C (39 °F; 277 K)
Explosive limits	1–?%
Related compounds
Related alkanes	2,2-Dimethylbutane; 2,3-Dimethylbutane; Triptane; Tetramethylbutane; Tetraethylmethane; 2,2,4-Trimethylpentane; 2,3,3-Trimethylpentane; Tetra-tert-butylmethane; 2,3-Dimethylhexane; 2,5-Dimethylhexane;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2,3,4-Trimethylpentane is a branched alkane. It is one of the isomers of octane.

References

External links

2,3,4-Trimethylpentane at environmentalchemistry.com

[1]

Names

Preferred IUPAC name 2,3,4-Trimethylpentane^[1]
Identifiers
CAS Number	565-75-3^Y
3D model (JSmol)	Interactive image
Beilstein Reference	1696869
ChEBI	CHEBI:165735
ChemSpider	10795^Y
ECHA InfoCard	100.008.448
EC Number	209-292-6
MeSH	2,3,4-trimethylpentane
PubChem CID	11269
RTECS number	SA3321500
UNII	WOJ1QVR6OA^Y
UN number	3295
CompTox Dashboard (EPA)	DTXSID6060343
InChI InChI=1S/C8H18/c1-6(2)8(5)7(3)4/h6-8H,1-5H3^Y Key: RLPGDEORIPLBNF-UHFFFAOYSA-N^Y
SMILES CC(C)C(C)C(C)C
Properties
Chemical formula	C₈H₁₈
Molar mass	114.232 g·mol⁻¹
Appearance	Colourless liquid
Odor	Odourless
Density	719 mg mL⁻¹
Melting point	−109.7 to −109.0 °C; −165.5 to −164.1 °F; 163.4 to 164.2 K
Boiling point	113.4 to 114.0 °C; 236.0 to 237.1 °F; 386.5 to 387.1 K
Vapor pressure	6.7549 kPa (at 37.7 °C)
Henry's law constant (k_H)	5.6 nmol Pa⁻¹ kg⁻¹
Refractive index (n_D)	1.404
Thermochemistry
Heat capacity (C)	247.32 J K⁻¹ mol⁻¹
Std molar entropy (S^⦵₂₉₈)	329.32 J K⁻¹ mol⁻¹
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	−256.9–−253.5 kJ mol⁻¹
Std enthalpy of combustion (Δ_cH^⦵₂₉₈)	−5.4671–−5.4639 MJ mol⁻¹
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H304, H315, H336, H410
Precautionary statements	P210, P261, P273, P301+P310, P331
Flash point	4 °C (39 °F; 277 K)
Explosive limits	1–?%
Related compounds
Related alkanes	2,2-Dimethylbutane 2,3-Dimethylbutane Triptane Tetramethylbutane Tetraethylmethane 2,2,4-Trimethylpentane 2,3,3-Trimethylpentane Tetra-tert-butylmethane 2,3-Dimethylhexane 2,5-Dimethylhexane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references