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HomeProduct name list2-Methylbutyraldehyde

2-Methylbutyraldehyde

Synonym(s):2-Methylbutanal

  • CAS NO.:96-17-3
  • Empirical Formula: C5H10O
  • Molecular Weight: 86.13
  • MDL number: MFCD00006984
  • EINECS: 202-485-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-19 23:02:33
2-Methylbutyraldehyde Structural

What is 2-Methylbutyraldehyde?

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

clear colorless to light yellow liquid

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.

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.

The Uses of 2-Methylbutyraldehyde

2-Methylbutyraldehyde is used for lift in woody and cocoa topnote complexes. And also used in cocoa, coffee, wine and nut flavors for lift.

The Uses of 2-Methylbutyraldehyde

Flavoring.

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

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.

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).

Properties of 2-Methylbutyraldehyde

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  n20/D 1.3919(lit.)
FEMA  2691 | 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
explosive limit 1.3-13%(V)
Water Solubility  Soluble in water, ether, and alcohol.
Sensitive  Air Sensitive
JECFA Number 254
BRN  1633540
CAS DataBase Reference 96-17-3(CAS DataBase Reference)
NIST Chemistry Reference Butanal, 2-methyl-(96-17-3)
EPA Substance Registry System 2-Methylbutanal (96-17-3)

Safety information for 2-Methylbutyraldehyde

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
ghs
Environment
GHS09
GHS Hazard Statements H225:Flammable liquids
H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233:Keep container tightly closed.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 2-Methylbutyraldehyde

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