2-Methylbutanal

Modify Date: 2026-07-23 18:49:40

2-Methylbutanal structure	Common Name	2-Methylbutanal
	CAS Number	96-17-3	Molecular Weight	86.132
	Density	0.8±0.1 g/cm3	Boiling Point	93.5±8.0 °C at 760 mmHg
	Molecular Formula	C₅H₁₀O	Melting Point	-60ºC
	MSDS	Chinese USA	Flash Point	4.4±0.0 °C
	Symbol	GHS02, GHS07	Signal Word	Danger

Summary: 2-Methylbutanal, also known as 2-甲基丁醛, has a CAS number of 96-17-3, with a molecular formula of C5H10O and a molecular weight of 86.132. It appears as a transparent liquid with a melting point of -60°C and a boiling point of 93.5±8.0 °C, and a density of 0.8±0.1 g/cm3. For research-use only, not for medical or clinical usage.

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	2-methylbutanal
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	0.8±0.1 g/cm3
Boiling Point	93.5±8.0 °C at 760 mmHg
Melting Point	-60ºC
Molecular Formula	C₅H₁₀O
Molecular Weight	86.132
Flash Point	4.4±0.0 °C
Exact Mass	86.073166
PSA	17.07000
LogP	1.25
Vapour Pressure	49.3±0.2 mmHg at 25°C
Index of Refraction	1.383
Storage condition	Flammables area

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

2-Methylbutanal MSDS(Chinese)

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ES3400000

CHEMICAL NAME :: Butyraldehyde, 2-methyl-

CAS REGISTRY NUMBER :: 96-17-3

BEILSTEIN REFERENCE NO. :: 1633540

LAST UPDATED :: 199710

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: C5-H10-O

MOLECULAR WEIGHT :: 86.15

WISWESSER LINE NOTATION :: VHY2&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 10/5/1972

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,739,1982

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,271,1986

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - guinea pig

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,739,1982 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,739,1982

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 14000 ppm/4H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 10/5/1972

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5730 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 10/5/1972

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: >20 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 20,739,1982

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol	GHS02, GHS07
Signal Word	Danger
Hazard Statements	H225-H317-H319-H335
Precautionary Statements	P210-P261-P280-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	F:Flammable;Xi:Irritant;
Risk Phrases	R11;R36
Safety Phrases	S16-S26-S39
RIDADR	UN 3371 3/PG 2
WGK Germany	1
RTECS	ES3400000
Packaging Group	II
Hazard Class	3.0
HS Code	2912190090

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 10
CAS#:106-98-9 1-Butene CAS#:201230-82-2 carbon monoxide CAS#:590-18-1 cis-2-butene CAS#:624-64-6 2-butene
CAS#:107-01-7 2-butene CAS#:1383625-86-2 2-(1-methylprop... CAS#:137-32-6 2-Methylbutan-1-ol CAS#:116-53-0 2-Methylbutyric acid
CAS#:75-28-5 Isobutane Resid... CAS#:78-85-3 Methylpropenal
DownStream 10
CAS#:111268-71-4 2-butan-2-yl-4-... CAS#:1112-47-6 Butanal,2-(hydr... CAS#:3586-58-1 Butanoic acid,2... CAS#:42072-39-9 (3S)-3-Methyl-1...
CAS#:563-80-4 3-Methyl-2-butanone CAS#:513-35-9 2-Methylbut-2-ene CAS#:563-45-1 3-Methylbut-1-ene CAS#:630-19-3 Pivaldehyde
CAS#:503-74-2 3-Methylbutanoi... CAS#:23399-61-3 2-ethyl-2,4-dim...

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2912190090
Summary	2912190090 acyclic aldehydes without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

This table lists relevant public references with title, journal and publication metadata for this compound.

Approaches of aroma extraction dilution analysis (AEDA) for headspace solid phase microextraction and gas chromatography-olfactometry (HS-SPME-GC-O): Altering sample amount, diluting the sample or adjusting split ratio?

Food Chem. 187 , 44-52, (2015)

Aroma extract dilution analysis (AEDA) is widely used for the screening of aroma-active compounds in gas chromatography-olfactometry (GC-O). In this study, three aroma dilution methods, (I) using diff...

Investigation of volatile metabolites during growth of Escherichia coli and Pseudomonas aeruginosa by needle trap-GC-MS.

Anal. Bioanal. Chem 406(26) , 6617-28, (2014)

A new method for the growth-dependent headspace analysis of bacterial cultures by needle trap (NT)-gas chromatography-mass spectrometry (GC-MS) was established. NTs were used for the first time as enr...

Analysis of volatile organic compounds liberated and metabolised by human umbilical vein endothelial cells (HUVEC) in vitro.

Cell Biochem. Biophys. 71(1) , 323-9, (2015)

Gas chromatography with mass spectrometric detection combined with head-space needle trap extraction as the pre-concentration technique was applied to identify and quantify volatile organic compounds ...

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2-Methylbutanal

α-Methylbutyric aldehyde

(±)-2-Methylbutanal

α-Methylbutyraldehyde

α-Methylbutanal

EINECS 202-485-6

2-Methylbutyraldehyde

MFCD00006984

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the upstream materials of 2-methylbutanal?

A: Related upstream materials(CAS) of 2-methylbutanal: 106-98-9;201230-82-2;590-18-1;624-64-6;107-01-7;1383625-86-2;137-32-6;116-53-0;75-28-5;78-85-3.

Q: What English synonyms does 2-methylbutanal have?

A: English synonyms of 2-methylbutanal: 2-Methylbutanal, α-Methylbutyric aldehyde, (±)-2-Methylbutanal, α-Methylbutyraldehyde, α-Methylbutanal, EINECS 202-485-6, 2-Methylbutyraldehyde, MFCD00006984.

Q: What is the safety information for 2-methylbutanal?

A: Safety information for 2-methylbutanal: S16-S26-S39.

Q: What is the CAS number of 2-methylbutanal?

A: CAS number of 2-methylbutanal is 96-17-3.

Q: What is the LogP of 2-methylbutanal?

A: LogP of 2-methylbutanal is 1.25.

Q: What is the melting point of 2-methylbutanal?

A: Melting point of 2-methylbutanal is -60ºC.

Q: What is the boiling point of 2-methylbutanal?

A: Boiling point of 2-methylbutanal is 93.5±8.0 °C at 760 mmHg.

Q: What is the molecular formula of 2-methylbutanal?

A: Molecular formula of 2-methylbutanal is C5H10O.

Q: What are the storage conditions for 2-methylbutanal?

A: Storage conditions for 2-methylbutanal: Flammables area.

Q: What are the downstream products of 2-methylbutanal?

A: Related downstream products(CAS) of 2-methylbutanal: 111268-71-4;1112-47-6;3586-58-1;42072-39-9;563-80-4;513-35-9;563-45-1;630-19-3;503-74-2;23399-61-3.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

Henan Tianfu Chemical Co., Ltd.

Zhongshan Xingrui Chemical Co. , Ltd.

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2-Methylbutanal
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Methylbutyraldehyde
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: TIANFU-CHEM_ 2-Methylbutyraldehyde,96-17-3
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 2-Methylbutanal
Price: ￥Inquiry/1000kg
Purity: 99.0%
Delivery: 2 Day
Contact: Wang Jie
Email: 3096638339@qq.com

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2-Methylbutanal

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.