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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
Last updated:2026-07-17 09:03:53

2-Methylbutyraldehyde Properties

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
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)  Flame (GHS02)Exclamation Mark (GHS07)Environment (GHS09)
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
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
3
0

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
Product number Packaging Price Buy
W269107 1 each $58 Buy
W269107 100g $111 Buy
W269107 1kg $534 Buy
W269107 8kg $1960 Buy
M33476 50g $129 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

Raw materials

Preparation Products

Global Suppliers ( 351)
Supplier Tel Email 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
2-Methylbutyraldehyde pictures 2026-09-18 2-Methylbutyraldehyde
96-17-3
1KG 98.0% 5000kg/month WUHAN FORTUNA CHEMICAL CO., LTD
2-Methylbutyraldehyde pictures 2026-07-17 2-Methylbutyraldehyde
96-17-3
$39.00 98.92% 10g TargetMol Chemicals Inc.
2-Methylbutyraldehyde pictures 2026-03-20 2-Methylbutyraldehyde
96-17-3
$10.00 1kg 99% 100 mt Hebei Chuanghai Biotechnology Co., Ltd
2-Methylbutyraldehyde, 95% 50ML (RS)-2-Methylbutanal 2-Ethylpropanal 2-Formylbutane 2-Methyl-1-butanal 2-methyl-butana 2-methyl-butyraldehyd 2-Methylbutyric aldehyde 2-Methylbutyricaldehyde Acetaldehyde, ethylmethyl- alpha-Methylbutanal alpha-Methylbutyraldehyde alpha-Methylbutyric aldehyde alpha-methylbutyricaldehyde Butanal,2-methyl-,(±)- Butyraldehyde, 2-methyl- Butyraldehyde,2-methyl- ethylmethyl-acetaldehyd sec-C4H9CHO α-Methylbutanal α-Methylbutyricaldehyde 2-METHYL BUTYRALDEHYDE FCC α-Methyl-n-butanal METHYL ETHYL ACETALDEHYDE α-Methylbutyraldehyde 2-Methylbutyraldehyde,96% 2-Methylbutyraldehyde,98% methylbutanal,2-methylbutanal 2-METHYLBUTYRALDEHYDE 2-METHYLBUTYRALDEHYDE 90+% D-2-Methylbutyraldehyde METHYLBUTYRALDEHYD-2 2-METHYLBUTYRALDEHYDE, NATURAL 2-METHYLBUTYLALDEHYDE 2-Methylbutyraldehyde,95% 2-A butyric aldehyde 2-Methylbutyraldehyde> 2-Methylbutyraldehyde USP/EP/BP TIANFU-CHEM_ 2-Methylbutyraldehyde,96-17-3 2-Methylbutyraldehyde, 10 mM in DMSO 2-METHYLBUTANAL Butanal,2-methyl- FEMA 2691 Natural 2-Methylbutanal 96-17-3 76-17-3 96173 57456981 CH32CHCH2CHO C2H5CHCH3CHO Organic Building Blocks ALDEHYDE Carbonyl Compounds C1 to C6 Aldehydes Building Blocks Alphabetical Listings Flavors and Fragrances