| Identification | More | [Name]
N-HEPTACOSANE | [CAS]
593-49-7 | [Synonyms]
ALKANE C27
HEPTACOSANE
N-HEPTACOSANE
HEPTACOSANE, STANDARD FOR GC
N-HEPTACOSANE 95+%
HEPTACOSANE 98+%
n-Heptacosan | [EINECS(EC#)]
209-792-4 | [Molecular Formula]
C27H56 | [MDL Number]
MFCD00009862 | [Molecular Weight]
380.73 | [MOL File]
593-49-7.mol |
| Chemical Properties | Back Directory | [Appearance]
Crystals.Soluble in alcohol; insoluble in water. | [Melting point ]
58-60 °C(lit.) | [Boiling point ]
270 °C15 mm Hg(lit.) | [density ]
0.7796 | [refractive index ]
1.4345 | [Fp ]
270°C/15mm | [storage temp. ]
Store at room temperature | [Water Solubility ]
Insoluble in water | [form ]
neat | [color ]
White to Almost white | [BRN ]
1706242 | [InChI]
1S/C27H56/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-27H2,1-2H3 | [InChIKey]
BJQWYEJQWHSSCJ-UHFFFAOYSA-N | [SMILES]
CCCCCCCCCCCCCCCCCCCCCCCCCCC | [LogP]
14.463 (est) | [CAS DataBase Reference]
593-49-7(CAS DataBase Reference) | [EPA Substance Registry System]
Heptacosane (593-49-7) |
| Questions And Answer | Back Directory | [Preparation]
Weigh 11.4 g of 10,18-heptadecanedione, 25 mL of hydrazine monohydrate, 25 mL of glacial acetic acid, and 305 mL of 1-octanol, and reflux at 140-150 °C for 9 hours with stirring. Remove the water and excess hydrazine formed using a Dean-Stark apparatus. Add a sodium octanoate solution (11 g sodium dissolved in 120 mL of 1-octanol) to the hydrazone. Then reflux the mixture for 24 hours. Raise the oil bath temperature to 180 °C. Neutralize the cold mixture with 4 M HCl. Evaporate the organic phase to dryness under vacuum (~133 Pa). The remaining semi-solid was crystallized from ethanol to give an impure white solid, which was finally purified by silica gel column chromatography (eluent toluene) to give N-HEPTACOSANE in 29% yield, with a melting point of 59 °C. |
| Hazard Information | Back Directory | [Hazard]
Combustible. | [Chemical Properties]
Crystals.Soluble in alcohol; insoluble in water. | [Uses]
Refer to the productμs Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support. | [Definition]
ChEBI: A straight-chain alkane with 27 carbon atoms. |
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