| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
| Company Name: |
Energy Chemical |
| Tel: |
400-0056266 |
| Email: |
sales8178@energy-chemical.com |
- 2-Methyl-2-pentenal
-
- $2.20
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2026-08-25
- CAS:623-36-9
- Min. Order: 1kg
- Purity: 99%min
- Supply Ability: 1000kg
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| | 2-Methyl-2-pentenal Basic information |
| | 2-Methyl-2-pentenal Chemical Properties |
| Melting point | -90°C | | Boiling point | 137-138 °C/765 mmHg (lit.) | | density | 0.86 g/mL at 25 °C (lit.) | | refractive index | n20/D 1.45(lit.) | | FEMA | 3194 | 2-METHYL-2-PENTENAL | | Fp | 89 °F | | storage temp. | Flammables area | | form | Liquid | | color | Clear colorless to pale yellow | | Odor | at 10.00 % in dipropylene glycol. aldehydic green cortex fruity alliaceous ripe cherry earthy | | Odor Type | green | | biological source | synthetic | | Water Solubility | 20g/L(20 ºC) | | Sensitive | Air Sensitive | | JECFA Number | 1209 | | BRN | 506124 | | Major Application | flavors and fragrances | | InChI | 1S/C6H10O/c1-3-4-6(2)5-7/h4-5H,3H2,1-2H3/b6-4+ | | InChIKey | IDEYZABHVQLHAF-GQCTYLIASA-N | | SMILES | [H]C(=O)\C(C)=C\CC | | LogP | 1.60 | | EPA Substance Registry System | 2-Pentenal, 2-methyl- (623-36-9) |
| Hazard Codes | Xn | | Risk Statements | 10-20-36-43-41 | | Safety Statements | 26-39-37-27-24 | | RIDADR | UN 1989 3/PG 3 | | WGK Germany | 1 | | RTECS | SB2100000 | | TSCA | TSCA listed | | HazardClass | 3 | | PackingGroup | III | | HS Code | 29121990 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Acute Tox. 3 Inhalation
Aquatic Chronic 3
Eye Dam. 1
Flam. Liq. 3
Skin Sens. 1 |
| | 2-Methyl-2-pentenal Usage And Synthesis |
| Description | 2-Methyl-2-pentenal has a powerful grassy-green, slightly fruity
odor and can be prepared synthetically by aldolic condensation of
propionaldehyde. | | Chemical Properties | 2-Methyl-2-pentenal has a powerful, grassy-green, slightly fruity odor. | | Chemical Properties | clear colorless to pale yellow liquid | | Occurrence | Reported found as a volatile component in onion. Also reported found in roasted onion, roasted peanut, cranberry, guava, grapes, grape brandy, papaya, shallots, leek, chive, fried potato, mustard, parmesan cheese, fish, roast
chicken, cooked beef, beer, cognac, coffee, tea, peanut, Japanese plum, mango, walnut, prickly pear, pumpkin, oysters, lamb’s
lettuce and maté | | Uses | GB 2760-1996 specifies it as a permitted food flavoring. 2-Methyl-2-pentenal is also an intermediate for pyrethroids and permethrin. | | Preparation | By aldolic condensation of propionaldehyde. | | Aroma threshold values | Recognition: 290 ppb. Aroma characteristics at: 1.0%: ethereal and pungent acrylate and acetophenonelike, penetrating, irritating with a fresh green juicy-fruity nuance. | | Taste threshold values | Taste characteristics at 5 ppm: sweet, tangy, juicy fruit, cherry, almond, citrus and topical with a slight
penetrating burning sensation and jamy brown with an alliaceous sharpness. | | Synthesis Reference(s) | The Journal of Organic Chemistry, 48, p. 1939, 1983 DOI: 10.1021/jo00159a042 | | General Description | 2-Methyl-2-pentenal has been identified as one of the major volatile flavor compounds in chive, caucas, onion and leek. |
| | 2-Methyl-2-pentenal Preparation Products And Raw materials |
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