5-(Hydroxymethyl)-2-furaldehyd

Bezeichnung:5-(Hydroxymethyl)-2-furaldehyd

CAS-Nr67-47-0

Englisch Name:5-Hydroxymethylfurfural

CBNumberCB6266813

SummenformelC6H6O3

Molgewicht126.11

MOL-Datei67-47-0.mol

Synonyma

5-(Hydroxymethyl)-2-furaldehyd

5-(Hydroxymethyl)-2-furaldehyd physikalisch-chemischer Eigenschaften

Schmelzpunkt	28-34 °C (lit.) 28-34 °C (lit.)
Siedepunkt	114-116 °C/1 mmHg (lit.)
Dichte	1.243 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.562(lit.)
Flammpunkt	175 °F
storage temp.	2-8°C
Löslichkeit	Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
Aggregatzustand	Liquid or Crystalline Powder and/or Chunks
pka	12.82±0.10(Predicted)
Farbe	Light yellow to yellow
Geruch (Odor)	at 0.10 % in dipropylene glycol. fatty buttery musty waxy caramellic
Geruchsart	fatty
Wasserlöslichkeit	Soluble in water, alcohol, ethyl acetate, acetone, dimethylformamide, benzene, ether and chloroform.
Sensitive	Air & Light Sensitive
Merck	14,4832
BRN	110889
Stabilität	Light Sensitive, Very Hygroscopic
InChIKey	NOEGNKMFWQHSLB-UHFFFAOYSA-N
LogP	-0.778 (est)
CAS Datenbank	67-47-0(CAS DataBase Reference)
NIST chemische Informationen	2-Furancarboxaldehyde, 5-(hydroxymethyl)-(67-47-0)
EPA chemische Informationen	2-Furancarboxaldehyde, 5-(hydroxymethyl)- (67-47-0)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38-52/53
S-Sätze:	26-36-24/25
WGK Germany	2
RTECS-Nr.	LT7031100
F	8-10
TSCA	Yes
HS Code	29321900
Giftige Stoffe Daten	67-47-0(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: 2500 mg/kg

Gefahreninformationscode (GHS)

5-Hydroxymethylfurfural Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R52/53:Schädlich für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
5-Hydroxymethylfurfural (5-HMF) derived from sugars is the link between biomass and furan-based chemicals. With its various functional groups and associated reaction sites, this small molecule opens the door to a wide range of chemical modifications, which makes 5-HMF a versatile renewable building block.
5-HMF is widely spread in food products and is formed in sugar containing food when exposed to heat. It is widely used as an indicator of quality in food products. It is also employed to indicate the adulteration of food products with acid converted invert syrups.
Chemische Eigenschaften
Beige Coloured Crystalline Solid.
Among the organic compounds that can be obtained from biomass, 5-Hydroxymethylfurfural (5-HMF) is one of the most interesting ones. 5-HMF is an organic compound derived from dehydration of certain sugars (hexoses). This yellow, low-melting solid is highly water-soluble. The molecule consists of a furan ring, containing both aldehyde and alcohol functional groups. HMF as natural substance has been identified in a wide variety of heat-processed foods including milk, fruit juices, spirits, honey, etc. HMF, which is derived from cellulose, is a potential "carbon-neutral" feedstock for a number of chemical substances.
Verwenden
5-Hydroxymethyl-2-furaldehyde is used as an intermediate of OMBF (5,5'-oxydimethylenebis(2- furfural)), crown ethers. It is used in organic synthesis to prepare dialdehydes, glycols, ethers, amino alcohols and acetals. It acts as an antioxidant found in some fruit juices and caramel products.
Verwenden
An antioxidant for grape and apple juice.
Verwenden
As an indicator for excess heat-treatment in sugar-containing food.
Verwenden
5-Hydroxymethylfurfural is a chemical substance produced by dehydration of glucose or fructose. The molecule contains a furan ring, an aldehyde group and a hydroxymethyl group. The chemical properties are relatively lively. 5-Hydroxymethylfurfural can prepare various derivatives through oxidation, hydrogenation and condensation, and is an important fine chemical raw material.
5-Hydroxymethylfurfural is a furfural compound with a furan ring structure produced by dehydration of monosaccharide compounds such as glucose under high temperature or weak acid conditions. It is an endogenous pollutant with potential safety hazards. 5-Hydroxymethylfurfural is an important chemical raw material. Its molecule contains an aldehyde group and a hydroxymethyl group, which can be used to synthesize many useful compounds and new polymer materials through hydrogenation, oxidative dehydrogenation, esterification, halogenation, polymerization, hydrolysis and other chemical reactions, including Medicine, resin-based plastics, diesel fuel additives, etc.
Application
5-Hydroxymethylfurfural can effectively prevent and treat neurodegenerative diseases, cognitive impairment and cardiovascular disease against myocardial ischemia, inhibit tumor and lower blood cholesterol. Uses 5-Hydroxymethylfurfural (5-HMF) is an important furan compound, which is widely used in medicine, chemistry, energy and other fields due to its excellent chemical properties. One of the important platform chemicals, its derivatives have great application prospects in the fields of fine chemicals, medicine, degradable plastics, etc. In particular, bio-based PEF polyester based on furandicarboxylic acid has shown better performance than petroleum-based PET (polyparaben). many properties of ethylene phthalate). 5-Hydroxymethylfurfural can be used to detect metabolites of glucose bolus infusion.
Application
5-Hydroxymethylfurfural has been used as a standard in the high performance liquid chromatographic (HPLC) analysis for the determination of 5-(hydroxymethyl)furfural content in co-hydrolysates and fermentation broth of lignocellulosic biomass for the lipid accumulation in M. isabellina type of microorganisms. 5-(Hydroxymethyl)furfural may be used as an analytical reference standard for the quantification of the analyte in vinegar and fruit juice samples using chromatography techniques.
5-Hydroxymethylfurfural has been used as standard in the high performance liquid chromatographic (HPLC) analysis for the determination of 5-(hydroxymethyl)furfural content in co-hydrolysates and fermentation broth of lignocellulosic biomass for the lipid accumulation in M. isabellina type of microorganisms.
Definition
ChEBI: 5-hydroxymethylfurfural is a member of the class of furans that is furan which is substituted at positions 2 and 5 by formyl and hydroxymethyl substituents, respectively. Virtually absent from fresh foods, it is naturally generated in sugar-containing foods during storage, and especially by drying or cooking. It is the causative component in honey that affects the presystemic metabolism and pharmacokinetics of GZ in-vivo. It has a role as an indicator and a Maillard reaction product. It is a member of furans, an arenecarbaldehyde and a primary alcohol.
synthetische
5-Hydroxymethylfurfural (HMF) was synthesized from glucose in a slug flow capillary microreactor, using a combination of AlCl3 and HCl as the homogeneous catalyst in the aqueous phase and methyl isobutyl ketone as the organic phase for in-situ HMF extraction.
Continuous synthesis of 5-hydroxymethylfurfural from glucose using a combination of AlCl3 and HCl as catalyst in a biphasic slug flow capillary microreactor
Synthesis Reference(s)
The Journal of Organic Chemistry, 59, p. 7259, 1994 DOI: 10.1021/jo00103a016
Allgemeine Beschreibung
5-(Hydroxymethyl)furfural is an organic compound, widely spread in food products and is formed in sugar containing food when exposed to heat. It is widely used as an indicator of quality in food products. It is also employed to indicate the adulteration of food products with acid converted invert syrups.
Biologische Aktivität
5-Hydroxymethylfurfural is a furanic compound derived from the degradation of sugars. It can be derived from reducing sugars via acid-catalyzed degradation or the Maillard reaction during the heating and storage of foods. 5-Hydroxymethylfurfural is an intermediate in the synthesis of a variety of compounds including 2,5-diformylfuran (DFF), 2,5-furandicarboxylic acid (FDA), 2,5-bis(hydroxymethyl)furan (5-(hydroxymethyl)furfuryl alcohol; Item No. 20658), and dimethylfuran (DMF), among others. 5-Hydroxymethylfurfural has been found in the marine algae L. undulata and scavenges 2,2-diphenyl-1-picrylhydrazyl (DPPH), hydroxyl, alkyl, and superoxide radicals in cell-free assays (IC50s = 27.1, 22.8, 45, and 33.5 μM, respectively).
Sicherheitsprofil
Questionable carcinogen with experimental tumorigenic data.Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES
Sicherheit(Safety)
5-Hydroxymethylfurfural is irritating to eyes, mucous membranes and skin, and has neurotoxicity and genotoxicity; it can be metabolized into 5-sulfoxymethylfurfural (SMF) in vivo, which has strong carcinogenicity and Genotoxicity. Chemical properties Light yellow waxy, easily soluble in methanol and ethanol, derived from Cornus, with high content of d-glucose. Uses for content determination/identification/pharmacological experiments, etc.
Stoffwechselwegen
When 5-hydroxymethyl-2-furaldehyde (HMF) is administered orally or intravenously to rats, HMF or its metabolites are rapidly eliminated in the urine with the recovery of 95 ? 100% after 24 h. HMF is completely converted to two metabolites which are identified as 5- hydroxymethyl-2-furoic acid and N-(5-hydroxymethyl-2- furoyl)glycine.
läuterung methode
Crystallise it from diethyl ether/pet ether. [Beilstein 18 III/IV 100, 18/1 V 130.]
Toxicity evaluation
5-Hydroxymethylfurfural (5-HMF) as a product of the Maillard reaction is found in many foods. Estimated intakes range between 4 and 30?mg per person and day, while an intake of up to 350?mg can result from, e.g., beverages made from dried plums. In vitro genotoxicity was positive when the metabolic preconditions for the formation of the reactive metabolite 5-sulphoxymethylfurfural were met. However, so far in vivo genotoxicity was negative. Results obtained in short-term model studies for 5-HMF on the induction of neoplastic changes in the intestinal tract were negative or cannot be reliably interpreted as “carcinogenic”. In the only long-term carcinogenicity study in rats and mice no tumours or their precursory stages were induced by 5-HMF aside from liver adenomas in female mice, the relevance of which must be viewed as doubtful. Hence, no relevance for humans concerning carcinogenic and genotoxic effects can be derived. The remaining toxic potential is rather low. Various animal experiments reveal that no adverse effect levels are in the range of 80–100?mg/kg body weight and day. Safety margins are generally sufficient. However, 5-HMF exposure resulting from caramel colours used as food additives should be further evaluated.
Toxicology and risk assessment of 5-Hydroxymethylfurfural in food

5-Hydroxymethylfurfural Upstream-Materialien And Downstream Produkte

5-(Hydroxymethyl)-2-furaldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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