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Product Name: |
3-methyl butyric acid |
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Synonyms: |
isopropyl-aceticaci;Isopropylessigsαure;isovalerianic;Isovalerianic acid;isovalerianicacid;Isovaleriansαure;Kyselina isovalerova;kyselinaisovalerova |
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CAS: |
503-74-2 |
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MF: |
C5H10O2 |
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MW: |
102.13 |
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EINECS: |
207-975-3 |
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Produkt kategorier: |
Panax ginseng;Phytochemicals by Plant (Food/Spice/Herb);Pharmaceutical Raw Materials;Artemisia vulgaris;Building Blocks;s wort);C1 to C5;Carbonyl Compounds;Carboxylic Acids;Carthamus tinctorius (Safflower oil);Chemical Synthesis;Humulus lupulus (Hops);Hypericum perforatum (St John′;Nutrition Research;Organic Building Blocks |
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Mol-fil: |
503-74-2.mol |
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Smeltepunkt |
-35 °C |
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Kokepunkt |
176 ° C |
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density |
0.926 |
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damptrykk |
0,38 mm Hg (20 ° C) |
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FEMA |
3102 | ISOVALERISYRE |
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refractive index |
n20/D 1.403(lit.) |
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Fp |
159 °F |
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lagringstemperatur |
Store below +30°C. |
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solubility |
48g/l |
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pka |
4.77(at 25℃) |
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form |
Væske |
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farge |
Clear colorless to slightly yellow |
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Spesifikk tyngdekraft |
0.928 (20/20℃) |
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PH |
3,1 (10g / l, H2O, 25â „ƒ) |
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eksplosjonsgrense |
1,5-6,8% (V) |
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Water Solubility |
25 g/L (20 ºC) |
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JECFA Number |
259 |
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Merck |
14,5231 |
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BRN |
1098522 |
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CAS DataBase Referanse |
503-74-2(CAS DataBase Reference) |
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NIST Chemistry Reference |
Butansyre, 3-metyl- (503-74-2) |
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EPA Substance Registry System |
Isovaleric acid (503-74-2) |
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Farekoder |
C,T |
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Risk Statements |
34-24-22 |
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Sikkerhetserklæringer |
26-36 / 37 / 39-45-38-28A |
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RIDADR |
UN 3265 8 / PG 2 |
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WGK Tyskland |
1 |
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RTECS |
NY1400000 |
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F |
13 |
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Autoignition Temperature |
824 ° F |
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TSCA |
Ja |
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HS kode |
2915 60 90 |
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HazardClass |
6.1 |
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PackingGroup |
III |
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Hazardous Substances Data |
503-74-2 (data om farlige stoffer) |
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Toxicity |
LD50 i.v. in mice: 1120±30 mg/kg (Or, Wretlind) |
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Beskrivelse |
Isovalerinsyre har en karakteristisk ubehagelig lukt. Det er ekstremt gjennomtrengende og bestandig med en sur smak. Kan syntetiseres ved oksidasjon av isoamylalkohol eller isovalerisk aldehyd. |
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Kjemiske egenskaper |
Isovaleric acid has a characteristic disagreeable, rancid, cheese-like odor. It is extremely penetrating and persistent with a sour taste. May consist of one or a mixture of isomers or n-pentanoic acid and/or 2- or 3-methyl butanoic acid. Consumption: Annual: 1850.00 lb |
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Kjemiske egenskaper |
clear colorless to slightly yellow liquid |
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Bruker |
Isovaleric acid is used extensively as a flavoring ingredient in nonalcoholic beverages and in foods such as ice cream, candy, baked goods, and cheese, as a fragrance ingredient in perfumes, and as a chemical intermediate in the manufacture of sedatives and other pharmaceutical products. It is also used as an extractant of mercaptans from petroleum hydrocarbons, a vinyl stabilizer, and as an intermediate in the manufacture of plasticizers and synthetic lubricants. |
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Bruker |
In flavors, perfumes, manufacture of sedatives. |
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Definition |
ChEBI: A C5, branched-chain saturated fatty acid. |
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Forberedelse |
By oxidation of isoamyl alcohol or isovaleric aldehyde |
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Aroma threshold values |
Påvisning: 190 ppbto 2,8 ppm |
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General Description |
Isovaleric acid is a colorless liquid with a penetrating odor. Isovaleric acid is slightly soluble in water. Isovaleric acid is corrosive to metals and to tissue. |
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Luft- og vannreaksjoner |
Isovalerinsyre er lett løselig i vann. |
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Fare |
Sterkt irriterende vev. |
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Health Hazard |
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. |
