methylthiol

Modify Date: 2026-06-30 23:20:23

methylthiol structure	Common Name	methylthiol
	CAS Number	554-14-3	Molecular Weight	98.166
	Density	1.0±0.1 g/cm3	Boiling Point	107.9±3.0 °C at 760 mmHg
	Molecular Formula	C₅H₆S	Melting Point	−63 °C(lit.)
	MSDS	Chinese USA	Flash Point	7.2±0.0 °C
	Symbol	GHS02	Signal Word	Danger

Use of methylthiol

4-Methylthiophene is an intermediate used in the synthesis of the aromatic sulfur compounds[1].

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

Name	2-Methylthiophene
Synonym	More Synonyms

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description	4-Methylthiophene is an intermediate used in the synthesis of the aromatic sulfur compounds[1].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Marta Królikowska, et al. Effect of Cation Structure in Quinolinium-Based Ionic Liquids on the Solubility in Aromatic Sulfur Compounds or Heptane: Thermodynamic Study on Phase Diagrams. Molecules

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

Density	1.0±0.1 g/cm3
Boiling Point	107.9±3.0 °C at 760 mmHg
Melting Point	−63 °C(lit.)
Molecular Formula	C₅H₆S
Molecular Weight	98.166
Flash Point	7.2±0.0 °C
Exact Mass	98.019020
PSA	28.24000
LogP	2.36
Vapour Pressure	31.0±0.2 mmHg at 25°C
Index of Refraction	1.531
InChIKey	XQQBUAPQHNYYRS-UHFFFAOYSA-N
SMILES	Cc1cccs1
Storage condition	Flammables area
Water Solubility	immiscible

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

methylthiol MSDS(Chinese)

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

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XM9625000

CHEMICAL NAME :: Thiophene, 2-methyl-

CAS REGISTRY NUMBER :: 554-14-3

BEILSTEIN REFERENCE NO. :: 0103734

LAST UPDATED :: 199710

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: C5-H6-S

MOLECULAR WEIGHT :: 98.17

WISWESSER LINE NOTATION :: T5SJ B1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3200 mg/kg

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

REFERENCE :: 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,87,1982

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1 gm/kg

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

REFERENCE :: 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,87,1982

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1460 mg/kg

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

REFERENCE :: 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,87,1982

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

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 11500 mg/m3/2H

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

REFERENCE :: 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,87,1982

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

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 1260 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: 51(5),61,1986 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 20 mg/m3 JAN 1993

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

Symbol	GHS02
Signal Word	Danger
Hazard Statements	H225
Precautionary Statements	P210
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;R36/37/38
Safety Phrases	S16-S37/39-S26
RIDADR	UN 1993 3/PG 2
WGK Germany	3
RTECS	XM9625000
Packaging Group	II
Hazard Class	3
HS Code	29349990

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#:54663-78-4 2-(Tributylstan... CAS#:74-88-4 methyl iodide CAS#:636-72-6 Thiophen-2-ylme... CAS#:110-66-7 pentanethiol
CAS#:1795-09-1 UNII:K290J6114Q CAS#:201230-82-2 carbon monoxide CAS#:188290-36-0 Thiophene(SIV) CAS#:98-03-3 2-Thiophenecarb...
CAS#:2004-70-8 trans-1,3-pentadiene CAS#:476004-80-5 5-Methylthiophe...
DownStream 10
CAS#:36050-35-8 2-Methyl-3-nitr... CAS#:476004-80-5 5-Methylthiophe... CAS#:59303-13-8 1-(5-Methylthie... CAS#:50845-87-9 ETHYL 5-METHYLT...
CAS#:40323-88-4 2-Ethyl-5-methy... CAS#:527-72-0 Thiophene-2-car... CAS#:3958-03-0 Tetrabromothiophene CAS#:45438-73-1 2-(Bromomethyl)...
CAS#:188848-57-9 1-[1-(5-methylt... CAS#:22988-52-9 4-(5-METHYL-2-T...

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

HS Code	29349990

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

Ultrafast Photoinduced Electron Transfer and Charge Stabilization in Donor-Acceptor Dyads Capable of Harvesting Near-Infrared Light.

Chemistry 21 , 11483-94, (2015)

To harvest energy from the near-infrared (near-IR) and infrared (IR) regions of the electromagnetic spectrum, which constitutes nearly 70 % of the solar radiation, there is a great demand for near-IR ...

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

2-Methyl-thiophene

2-methlthiophene

2-thiotolene

2-Me-thiophene

2-METHYLTHIOPHENE GC

2-Methylthiophene

5-Methylthiophene

UNII-7115JAP77A

EINECS 209-063-0

α-Methylthiophene

methylthiophene

MFCD00005451

methylthiol

Thiophene,2-methyl

2MT

2-methyl-thiophen

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

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

A: CAS number of 2-Methylthiophene is 554-14-3.

Q: What is the English name of 2-Methylthiophene?

A: The English name of 2-Methylthiophene is 2-Methylthiophene.

Q: What is the LogP of 2-Methylthiophene?

A: LogP of 2-Methylthiophene is 2.36.

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

A: Related upstream materials(CAS) of 2-Methylthiophene: 54663-78-4;74-88-4;636-72-6;110-66-7;1795-09-1;201230-82-2;188290-36-0;98-03-3;2004-70-8;476004-80-5.

Q: How is the water solubility of 2-Methylthiophene?

A: Water solubility of 2-Methylthiophene: immiscible.

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

A: Melting point of 2-Methylthiophene is −63 °C(lit.).

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

A: Related downstream products(CAS) of 2-Methylthiophene: 36050-35-8;476004-80-5;59303-13-8;50845-87-9;40323-88-4;527-72-0;3958-03-0;45438-73-1;188848-57-9;22988-52-9.

Q: What is the SMILES notation of 2-Methylthiophene?

A: SMILES notation of 2-Methylthiophene is Cc1cccs1.

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

A: Boiling point of 2-Methylthiophene is 107.9±3.0 °C at 760 mmHg.

Q: What is the molecular weight of 2-Methylthiophene?

A: Molecular weight of 2-Methylthiophene is 98.166.

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.

Zhongshan Xingrui Chemical Co. , Ltd.

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: methylthiol
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

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

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: methylthiol
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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Price: ￥500/500 mg

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