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556645

Sigma-Aldrich

N-Heptafluorobutyrylimidazole

97%

Synonym(s):

1-(Perfluorobutyryl)imidazole, NSC 151966

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About This Item

Empirical Formula (Hill Notation):
C7H3F7N2O
CAS Number:
32477-35-3
Molecular Weight:
264.10
EC Number:
251-063-8
MDL number:
MFCD00014503
UNSPSC Code:
12352005
PubChem Substance ID:
24879570
NACRES:
NA.22
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Quality Level

100

Assay

97%

refractive index

n20/D 1.3865 (lit.)

bp

161 °C (lit.)

density

1.490 g/mL at 25 °C (lit.)

functional group

fluoro

storage temp.

2-8°C

SMILES string

FC(F)(F)C(F)(F)C(F)(F)C(=O)n1ccnc1

InChI

1S/C7H3F7N2O/c8-5(9,6(10,11)7(12,13)14)4(17)16-2-1-15-3-16/h1-3H

InChI key

MSYHGYDAVLDKCE-UHFFFAOYSA-N

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General description

May form a precipitate and may darken on storage-will not effect performance.

Application

N-Heptafluorobutyrylimidazole may be used as a derivatization reagent in the gas-liquid chromatographic (GLC) analysis of the following compounds:
  • deoxynivalenol in wheat[1]
  • antibiotics (gentamicin, tobramycin, netilmicin, and amikacin) in human serum[2]
  • melatonin[3]
  • heptafluorobutyryl compounds formed by acylation of indolealkylamines[4]
  • acylation products of of morphine, codeine and nalorphine[5]

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

170.6 °F - closed cup

Flash Point(C)

77 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV6002
MKCT8286
MKCT2027
MKCS4469
MKCP6418

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"Determination of opiates in biological samples by glass capillary gas chromatography with electron-capture detection"
Edlund OP
Journal of Chromatography A, 206(1), 109-116 (1981)
"Identification and separation of indolealkylamines by gas-liquid chromatographic analysis of their heptafluorobutyryl derivatives"
Beningtom F, et al.
Journal of Chromatography A, 106(2), 435-443 (1975)
A gas-liquid chromatographic assay of melatonin and indoleamines using heptafluorobutyryl derivatives.
P H Degen et al.
Analytical biochemistry, 45(2), 634-644 (1972-02-01)
Y Luo et al.
Journal of chromatography. B, Biomedical applications, 667(2), 344-348 (1995-05-19)
A method for the monitoring of dihydroetorphine hydrochloride, a powerful anaesthetic and analgesic drug, in biological fluids was developed, involving GC-MS with multiple selected-ion monitoring. Dihydroetorphine was extracted from human blood and urine with dichloromethane and then derivatized with N-heptafluorobutyrylimidazole
P M Scott et al.
Journal - Association of Official Analytical Chemists, 64(6), 1364-1371 (1981-11-01)
A method for determining deoxynivalenol (DON) in wheat has been developed in conjunction with an assessment of contamination in Canada. The sample is extracted with methanol-water; the extract is treated with 30% aqueous ammonium sulfate solution and extracted with 4
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