2-Methylbutyraldehyde
- CAS No.
- 96-17-3
- Chemical Name:
- 2-Methylbutyraldehyde
- Synonyms
- 2-METHYLBUTANAL;Butanal,2-methyl-;α-Methylbutanal;FEMA 2691;2-Ethylpropanal;2-Methyl-1-butanal;2-methyl-butyraldehyd;sec-C4H9CHO;2-Formylbutane;2-methyl-butana
- CBNumber:
- CB8698982
- Molecular Formula:
- C5H10O
- Molecular Weight:
- 86.13
- MDL Number:
- MFCD00006984
- MOL File:
- 96-17-3.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | -67.38°C (estimate) |
|---|---|
| Boiling point | 90-92 °C (lit.) |
| Density | 0.806 g/mL at 20 °C 0.804 g/mL at 25 °C (lit.) |
| refractive index |
n |
| FEMA | 2691 | 2-METHYLBUTYRALDEHYDE |
| FLAVIS Number | 05.049 | 2-Methylbutyraldehyde |
| Flash point | 40 °F |
| storage temp. | 2-8°C |
| solubility | soluble in Chloroform, Methanol |
| form | Liquid |
| color | Clear colorless |
| Odor | at 1.00 % in dipropylene glycol. musty cocoa phenolic coffee nutty malty fermented fatty alcoholic |
| Odor Type | cocoa |
| explosive limit | 1.3-13%(V) |
| biological source | synthetic |
| optical activity | -0.13°(C=1.00 g/100ml,CHCL3) |
| Water Solubility | Soluble in water, ether, and alcohol. |
| Sensitive | Air Sensitive |
| JECFA Number | 254 |
| BRN | 1633540 |
| Henry's Law Constant | 2.5×10-2 mol/(m3Pa) at 25℃, Brockbank (2013) |
| Major Application | flavors and fragrances |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C5H10O/c1-3-5(2)4-6/h4-5H,3H2,1-2H3 |
| InChIKey | BYGQBDHUGHBGMD-UHFFFAOYSA-N |
| SMILES | [H]C(=O)C(C)CC |
| LogP | 1.23 at 25℃ |
| Substances Added to Food (formerly EAFUS) | 2-METHYLBUTYRALDEHYDE |
| CAS DataBase Reference | 96-17-3(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 47H597M1YY |
| NIST Chemistry Reference | Butanal, 2-methyl-(96-17-3) |
| EPA Substance Registry System | 2-Methylbutanal (96-17-3) |
| UNSPSC Code | 85151701 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() ![]() GHS02,GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H317-H319-H335-H411 | |||||||||
| Precautionary statements | P210-P233-P273-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36-43-36/37 | |||||||||
| Safety Statements | 16-26-36-39-36/37 | |||||||||
| RIDADR | UN 3371 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | ES3400000 | |||||||||
| F | 10-23 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29121900 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Aquatic Chronic 2 Eye Irrit. 2 Flam. Liq. 2 Skin Sens. 1 STOT SE 3 |
|||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
2-Methylbutyraldehyde price More Price(48)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W269107 | 2-Methylbutyraldehyde ≥95%, FG | 96-17-3 | 1 each | $58 | 2026-04-30 | Buy |
| Sigma-Aldrich | W269107 | 2-Methylbutyraldehyde ≥95%, FG | 96-17-3 | 100g | $111 | 2026-04-30 | Buy |
| Sigma-Aldrich | W269107 | 2-Methylbutyraldehyde ≥95%, FG | 96-17-3 | 1kg | $534 | 2026-04-30 | Buy |
| Sigma-Aldrich | W269107 | 2-Methylbutyraldehyde ≥95%, FG | 96-17-3 | 8kg | $1960 | 2026-04-30 | Buy |
| Sigma-Aldrich | M33476 | 2-Methylbutyraldehyde 95% | 96-17-3 | 50g | $129 | 2026-04-30 | Buy |
2-Methylbutyraldehyde Chemical Properties, Uses, Production
Description
2-Methylbutyraldehyde has a powerful, choking odor with a peculiar cocoa and coffee-like flavor when diluted. It has a sweet, slightly fruity, chocolate-like taste. May be prepared by oxidation of sec-butylcarbinol isolated from fermented fusel oil; the dl-form from sec-butyl magnesium bromide and formaldehyde; by reduction of methylethylacetic acid.
Chemical Properties
2-Methylbutyraldehyde has a powerful, choking odor with a peculiar cocoa and coffee-like flavor when diluted. This compound is also reported to have a sweet, slightly fruity, chocolate-like taste.
Chemical Properties
clear colorless to light yellow liquid
Occurrence
Reported found in apple juice, berries, grapes, papaya, peach, kohlrabi, onion, leek, peas, potato, bell pepper, tomato, peppermint and spearmint oil, breads, cheeses, milk, egg, fatty and lean fish, meats, beer, cognac, rum, cocoa, coffee, tea, filberts, peanuts, pecans, oat flakes, soybean, olive, passion fruit, plum, beans, mushrooms, trassi, macadamia nut, tamarind, cardamom, rice, quince, lovage leaf, pumpkin, sweet corn, laurel, malt, clary sage, truffle, clam, scallops, squid, Chinese quince and Roman chamomile oil, black currant and Swiss cheese.
Uses
2-Methylbutyraldehyde is used for lift in woody and cocoa topnote complexes. And also used in cocoa, coffee, wine and nut flavors for lift.
Uses
Flavoring.
Definition
ChEBI: 2-methylbutanal is a methylbutanal in which the methyl substituent is at position 2. It has a role as a volatile oil component, a plant metabolite and a Saccharomyces cerevisiae metabolite. It is a 2-methyl-branched fatty aldehyde and a methylbutanal.
Preparation
By oxidation of sec-butylcarbinol isolated from fermented fusel oil; the dl-form from sec-butyl magnesium bromide and formaldehyde; by reduction of methylethylacetic acid
Taste threshold values
characteristics at 10 ppm: green, fruity, musty with a berry nuance, musty, furfural and rummy, with nutty and cereal notes, caramel and fruity undernotes.
General Description
2-Methylbutyraldehyde has been identified as one of the important flavor compounds in barley crystal malts, baked potatoes, whole milk powder (WMP).
Toxics Screening Level
The initial threshold screening level (ITSL) for 2-methylbutyraldehyde is 700 μg/m3 based on an annual averaging time.
2-Methylbutyraldehyde Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Juye Zhongyue Spices Co., Ltd | 0530-8599699 13701896116 | liujun@zhongyuearoma.com | China | 116 | 58 |
| Dexin chemical (Shandong) Co. , Ltd. | 15853369661 | 1092794701@qq.com | China | 159 | 58 |
| Henan xiangduo industry co., ltd | 0371-1598184-8961; 15981848961;18638673268 | sales@xiangduochem.com | China | 444 | 58 |
| Guangzhou Rui Lion Biotechnology Co., LTD | 13168345686 17306666488 | 607141423@qq.com | China | 1725 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| ShangHai DEMO Chemical Co.,Ltd | 400-021-7337 2355568890 | sales@demochem.com | China | 2569 | 57 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
View Latest Price from 2-Methylbutyraldehyde manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-18 | 2-Methylbutyraldehyde
96-17-3
|
1KG | 98.0% | 5000kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
![]() |
2026-07-17 | 2-Methylbutyraldehyde
96-17-3
|
$39.00 | 98.92% | 10g | TargetMol Chemicals Inc. | ||
![]() |
2026-03-20 | 2-Methylbutyraldehyde
96-17-3
|
$10.00 | 1kg | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd |
-

- 2-Methylbutyraldehyde
96-17-3
- $0.00
- 98.0%
- WUHAN FORTUNA CHEMICAL CO., LTD
-

- 2-Methylbutyraldehyde
96-17-3
- $39.00
- 98.92%
- TargetMol Chemicals Inc.
-

- 2-Methylbutyraldehyde
96-17-3
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
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