Methional

Modify Date: 2025-08-23 11:02:25

Methional structure	Common Name	Methional
	CAS Number	3268-49-3	Molecular Weight	104.171
	Density	1.0±0.1 g/cm3	Boiling Point	168.2±23.0 °C at 760 mmHg
	Molecular Formula	C₄H₈OS	Melting Point	-68°C
	MSDS	Chinese USA	Flash Point	61.1±0.0 °C
	Symbol	GHS05, GHS06	Signal Word	Danger

Name	3-methylthiopropanal
Synonym	More Synonyms

Density	1.0±0.1 g/cm3
Boiling Point	168.2±23.0 °C at 760 mmHg
Melting Point	-68°C
Molecular Formula	C₄H₈OS
Molecular Weight	104.171
Flash Point	61.1±0.0 °C
Exact Mass	104.029587
PSA	42.37000
LogP	0.71
Vapour density	>1 (vs air)
Vapour Pressure	1.6±0.3 mmHg at 25°C
Index of Refraction	1.456
InChIKey	CLUWOWRTHNNBBU-UHFFFAOYSA-N
SMILES	CSCCC=O

Methional MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UE2285000

CHEMICAL NAME :: Propionaldehyde, 3-(methylthio)-

CAS REGISTRY NUMBER :: 3268-49-3

BEILSTEIN REFERENCE NO. :: 1739289

LAST UPDATED :: 199712

DATA ITEMS CITED :: 10

MOLECULAR FORMULA :: C4-H8-O-S

MOLECULAR WEIGHT :: 104.18

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0546239 ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 700 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - muscle weakness Gastrointestinal - alteration in gastric secretion

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0546239

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5820 mg/m3/4H

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 49(1),85,1984

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1620 mg/kg

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 49(1),85,1984

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5400 mg/m3/2H

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

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 49(1),85,1984

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2500 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - excitement Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0534366 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83834 No. of Facilities: 21 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 207 (estimated)

Symbol	GHS05, GHS06
Signal Word	Danger
Hazard Statements	H302 + H332-H311-H315-H317-H318-H412
Precautionary Statements	P261-P273-P280-P302 + P352 + P312-P305 + P351 + P338 + P310
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xn:Harmful;
Risk Phrases	R20;R36/37/38
Safety Phrases	S26-S36/37/39-S45-S37/39
RIDADR	UN 2785 6.1/PG 3
WGK Germany	1
RTECS	UE2285000
Packaging Group	III
Hazard Class	6.1(b)
HS Code	29309070

Precursor 10
CAS#:74-93-1 Methyl mercaptan CAS#:598-54-9 COPPER(I) ACETATE CAS#:107-02-8 acrolein CAS#:54509-73-8 ethene
CAS#:81382-04-9 1,1,3-tris-meth... CAS#:505-10-2 methionol CAS#:54974-63-9 3-(Methylthio)p... CAS#:863608-03-1 acetic acid 1-(...
CAS#:56-81-5 Glycerol CAS#:16630-61-8 methional dieth...
DownStream 10
CAS#:1115-47-5 N-Acetyl-DL-met... CAS#:33280-93-2 ETHYL 2-ACETAMI... CAS#:24949-35-7 1,3-bis(methyls... CAS#:505-10-2 methionol
CAS#:30411-90-6 (1-amino-3-meth... CAS#:873660-49-2 2-hydroxy-4-(me... CAS#:583-91-5 2-Hydroxy-4-(me... CAS#:65-82-7 N-acetyl-L-meth...
CAS#:1509-92-8 N-Acetyl-DL-met... CAS#:13253-44-6 5-(2-Methylthio...

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Olfactometry Profiles and Quantitation of Volatile Sulfur Compounds of Swiss Tilsit Cheeses.

J. Agric. Food Chem. 63 , 7511-21, (2015)

To establish the odor profiles of three differently fabricated commercial Swiss Tilsit cheeses, analyses were conducted using headspace solid-phase microextraction gas chromatography-mass spectrometry...

Comparison of Aroma-Active Volatiles in Oolong Tea Infusions Using GC-Olfactometry, GC-FPD, and GC-MS.

J. Agric. Food Chem. 63 , 7499-510, (2015)

The aroma profile of oolong tea infusions (Dongdingwulong, DDWL; Tieguanyin, TGY; Dahongpao, DHP) were investigated in this study. Gas chromatography-olfactometry (GC-O) with the method of aroma inten...

2-Methyl-3-furanthiol and methional are possible off-flavors in stored orange juice: aroma-similarity, NIF/SNIF GC-O, and GC analyses.

J. Agric. Food Chem. 49(11) , 5425-32, (2001)

The occurrence of methional in fresh orange juice, and possible occurrence of beta-damascenone in heated orange juice, has been previously suggested. Here we report on the occurrence of 2-methyl-3-fur...

3-Methylthiopropana

Propanal, 3-(methylthio)-

Propionaldehyde, 3- (methylthio)-

Propanal, 3- (methylthio)-

4-Thiapentanal

3-(Methylthio)propionaldehyde

3-(Methylthio)propanal

3-methylsulfanyl-propionaldehyde

EINECS 221-882-5

3-(Methylsulfanyl)propanal

3-methylsulfanylpropanal

MFCD00007022

Methional

3-(Methylmercapto)propionaldehyde

3-(Methylmercapto)propionaldehyde (3-(Methylthio)propanal

β-(Methylthio)propionaldehyde

MeSCH2CH2CHO

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: Methional
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Methional
Price: ￥118.0/25g ￥338.0/100g
Purity: 98.0%
Delivery: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3-(Methylthio)propionaldehyde
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: High purity CAS 3268-49-3 3-(Methylthio)propionaldehyde in stock
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Get all suppliers and price by the below link:

Methional suppliers

Methional price

Methional

Names

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Safety Information

Synthetic Route

Precursor & DownStream

Customs

Articles30

Synonyms

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.