Heptafluorobutanoic anhydride

Heptafluorobutanoic anhydride Structure
Heptafluorobutanoic anhydride structure
Common Name Heptafluorobutanoic anhydride
CAS Number 336-59-4 Molecular Weight 410.061
Density 1.7±0.1 g/cm3 Boiling Point 106.7±35.0 °C at 760 mmHg
Molecular Formula C8F14O3 Melting Point −43 °C(lit.)
MSDS Chinese USA Flash Point 18.9±20.8 °C
Symbol GHS05
GHS05
Signal Word Danger

Benzofuran analogues of amphetamine and methamphetamine: studies on the metabolism and toxicological analysis of 5-APB and 5-MAPB in urine and plasma using GC-MS and LC-(HR)-MS(n) techniques.

Anal. Bioanal. Chem 407(5) , 1371-88, (2015)

5-APB (5-(2-aminopropyl)benzofuran) and its N-methyl derivative 5-MAPB (N-methyl-5-(2-aminopropyl)benzofuran) are analogues of amphetamine and methamphetamine, respectively, and belong to the so-called novel psychoactive substances (NPS). They were consumed a...

Development and validation of a GC/MS method for the simultaneous determination of levetiracetam and lamotrigine in whole blood.

J. Pharm. Biomed. Anal. 102 , 25-32, (2014)

A sensitive and accurate gas chromatography-mass spectrometric method was developed and validated for the simultaneous determination of levetiracetam and lamotrigine in whole blood. A solid-phase extraction (SPE) procedure using HF Bond Elut C18 columns follo...

Quantification of ten neuroactive steroids in plasma in Withdrawal Seizure-Prone and -Resistant mice during chronic ethanol withdrawal.

Psychopharmacol. Ser. 231(17) , 3401-14, (2014)

The rapid membrane actions of neuroactive steroids, particularly via an enhancement of γ-aminobutyric acidA receptors (GABAARs), participate in the regulation of central nervous system excitability. Prior evidence suggests an inverse relationship between endo...

Role of dermal exposure in systemic intake of methylenediphenyl diisocyanate (MDI) among construction and boat building workers.

Toxicol. Lett. 232(3) , 595-600, (2015)

The causal relationship between inhalation exposure to methylenediphenyl diisocyanate (MDI) and the risk of occupational asthma is well known, but the role of dermal exposure and dermal uptake of MDI in this process is still unclear. The aims of this study we...

GC-MS and IR studies on the six ring regioisomeric dimethoxyphenylpiperazines (DOMePPs).

J. Forensic Sci. 60(2) , 285-94, (2015)

A number of N-substituted piperazines have been described as drugs of abuse in recent years. This new drug category includes several series of aromatic ring substituted phenylpiperazines. The wide variety of available precursors makes regioisomerism a signifi...

Analysis of the sulphur mustard metabolites thiodiglycol and thiodiglycol sulphoxide in urine using isotope-dilution gas chromatography-ion trap tandem mass spectrometry.

J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 845(1) , 114-20, (2007)

A sensitive method has been developed for the trace analysis of the sulphur mustard metabolite thiodiglycol (TDG) in urine, and its oxidation product thiodiglycol sulphoxide (TDGO) after reduction to thiodiglycol. Thiodiglycol was extracted from urine by soli...

The simultaneous separation and determination of chloropropanols in soy sauce and other flavoring with gas chromatography-mass spectrometry in negative chemical and electron impact ionization modes.

Food Addit. Contam. 23(2) , 110-9, (2006)

Both gas chromatography-mass spectrometry in electron ionization (GC-MS-EI) and negative chemical ionization (GC-MS-NCI) modes are reported in this paper for the simultaneous determination of 1,3-dichloropropan-2-ol (1,3-DCP), 2,3-dichloropropan-1-ol (2,3-DCP...

Determination of anabolic steroids by gas chromatography/negative-ion chemical ionization mass spectrometry and gas chromatography/negative-ion chemical ionization tandem mass spectrometry with heptafluorobutyric anhydride derivatization.

Rapid Commun. Mass Spectrom. 13(5) , 376-80, (1999)

A gas chromatography/mass spectrometry (GC/MS) method is described which uses negative ion chemical ionization (NCI) and tandem mass spectrometry (MS/MS) for the determination of eight anabolic steroids in human urine. Eight anabolic steroids were derivatized...

Determination of low levels of poly(ethylene glycol) 400 in plasma and urine by capillary gas chromatography-selected ion-monitoring mass spectrometry after solid-phase extraction.

J. Chromatogr. B. Biomed. Sci. Appl. 700(1-2) , 93-100, (1997)

A convenient and sensitive method for the quantitative determination of poly(ethylene glycol) 400 in plasma and urine with capillary gas chromatography-mass spectrometry has been developed. The sample preparation involves solid-phase extraction with subsequen...

Development and validation of an EI-GC/MS method for the determination of sertraline and its major metabolite desmethyl-sertraline in blood.

J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 879(25) , 2576-82, (2011)

A sensitive and specific GC/MS method for the determination of sertraline and its main metabolite desmethyl-sertraline in whole blood has been developed, optimized and validated. Sample preparation included solid-phase extraction of both analytes and their de...