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Produktnavn: |
Etyl-2-metylbutyrat |
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Synonyms: |
Ethyl 2-methylbutyrate,99%;Ethyl 2-methylbutyra;2-Methylbutanoic acid ethyl ester;2-methyl-butanoicaciethylester;Butanoicacid,2-methyl-,ethylester;Butyric acid, 2-methyl-, ethyl ester;Ethyl alpha-methylbutyrate;Ethyl 2-Methyl butyrate >= 99.0%, Natural |
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CAS: |
7452-79-1 |
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MF: |
C7H14O2 |
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MW: |
130.18 |
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EINECS: |
231-225-4 |
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Mol-fil: |
7452-79-1.mol |
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Melting point |
-93,23 ° C (estimat) |
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Kokepunkt |
133 °C(lit.) |
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tetthet |
0,865 g / ml ved 25 ° C (opplyst) |
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FEMA |
2443 | ETHYL 2-METYLBUTYRATE |
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refractive index |
n20 / D 1.397 (lys) |
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Fp |
79 ° F |
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storage temp. |
Flammables area |
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form |
Liquid |
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color |
Klar fargeløs |
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PH |
7 (H2O) |
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JECFA Number |
206 |
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BRN |
1720887 |
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CAS DataBase Referanse |
7452-79-1 (CAS DataBase Reference) |
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NIST Chemistry Reference |
Butanoic acid, 2-methyl-, ethyl ester(7452-79-1) |
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EPA Substance Registry System |
Ethyl 2-methylbutyrate (7452-79-1) |
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Risk Statements |
10 |
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Safety Statements |
16-24 / 25 |
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RIDADR |
UN 3272 3 / PG 3 |
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WGK Germany |
1 |
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TSCA |
Ja |
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HazardClass |
3 |
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PackingGroup |
III |
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HS kode |
29159080 |
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Beskrivelse |
Ethyl 2-methylbutyrate is the ethyl ester form of the 2-methylbutyrate with pleasant sweet aroma. It is a naturally occurring ester which is found in apple, wine, orange, strawberry, cheese, milk, mango, cognac, etc. It is a highly valuable flavoring agent used in flavoring in foods and beverages as well as fragrance in perfume and perfumed products. It is generally prepared through the esterification between alcohol and 2-methylbutyrate. |
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Kjemiske egenskaper |
clear colorless liquid |
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Kjemiske egenskaper |
Ethyl2-Methylbutyrate er en væske med en grønn, fruktig lukt som minner om epler. Den finnes for eksempel i sitrusfrukter og ville bær og brukes blandinger med fruktsmak. |
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Kjemiske egenskaper |
Ethyl 2-methylbutyrate has a powerful, green-fruity, apple-like odor. |
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Occurrence |
Reported found in nature; the ethyl l-methylbutyrate has been identified in strawberry juice; because of the presence of the asymmetric carbon, the compound should exhibit optically active forms as well as the racemic form; however, only the d-form and the racemic form are known. Reported found in apple juice, orange and grapefruit juice, bilberry, pineapple, strawberry, cheeses, milk, cognac, rum, whiskey, cider, mango, mountain papaya, spineless monkey orange (Strychnos madagasc.), Chinese quince and German chamomile oil. |
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Preparation |
Den racemiske formen kan fremstilles katalytisk ved flere fremgangsmåter: fra buten og Ni (CO) 4 underernitrogen i etylalkohol / eddiksyreoppløsning, eller fra etylen- og CO-undertrykk ved bruk av HBF4 og HF som katalysatorer. |
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Aroma terskelverdier |
Detection: 0.01 to 0.1 ppb |
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Taste threshold values |
Smakskarakteristika ved 40 spm: fruktig, grønn, bær, jordbær, fersk eple, ananas og bringebær |
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General Description |
En fargeløs oljevæske med fruktig lukt. Uoppløselig i vann og mindre tett enn vann. Flammepunkt 73 ° F. Kontakt kan irritere hud, øyne og slimhinner. |
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Raw materials |
Hydrofluoric acid-->Fluoroboric acid-->CARBON MONOXIDE |
