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Isobutylmercaptan

Isobutylmercaptan structure

CAS No.: 513-44-0

Chemical Name:: Isobutylmercaptan

Synonyms: ISOBUTYL MERCAPTAN;2-METHYL-1-PROPANETHIOL;FEMA 3874;isobutylthiol;2-methylpropane-1-thiol;iso-C4H9SH;Isobutanethiol;iso-Butanethiol;1-Isobutanethiol;Isobutyl mecaptan

CBNumber:: CB5358715

Molecular Formula:: C4H10S

Molecular Weight:: 90.19

MDL Number:: MFCD00004882

MOL File:: 513-44-0.mol

MSDS File:: SDS

Last updated:2026-05-28 01:16:24

Product description	Number	Pack Size	Price
2-Methyl-1-propanethiol ≥95%, FG	W387401	1 each	$58
2-Methyl-1-propanethiol ≥95%, FG	W387401	1kg	$318
2-Methyl-1-propanethiol ≥95%, FG	W387401	4kg	$1070
2-Methyl-1-propanethiol ≥95%, FG	W387401	8kg	$2000
2-Methyl-1-propanethiol 92%, technical grade	112917	100ml	$216
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Isobutylmercaptan Properties

Melting point	-145°C
Boiling point	87-89 °C(lit.)
Density	0.831 g/mL at 25 °C(lit.)
vapor density	3.1 (vs air)
vapor pressure	124 mm Hg ( 37.8 °C)
refractive index	n20/D 1.4385(lit.)
FEMA	3874 \| 2-METHYL-1-PROPANETHIOL
FLAVIS Number	12.173 \| 2-Methylpropane-1-thiol
Flash point	15 °F
solubility	H2O: slightly soluble
form	liquid
pka	10.41±0.10(Predicted)
color	Colorless to Light yellow
Odor	at 0.10 % in propylene glycol. cooked vegetable mustard
Odor Type	sulfurous
biological source	synthetic
Odor Threshold	0.0000068ppm
Water Solubility	H2O: slightly soluble alcohol: very soluble diethyl ether: very soluble
JECFA Number	512
Merck	14,5147
BRN	1730890
Henry's Law Constant	1.0×10^-3 mol/(m³Pa) at 25℃, Zin et al. (2016)
InChI	1S/C4H10S/c1-4(2)3-5/h4-5H,3H2,1-2H3
InChIKey	BDFAOUQQXJIZDG-UHFFFAOYSA-N
SMILES	CC(C)CS
LogP	2.18
CAS DataBase Reference	513-44-0(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)	2-METHYL-1-PROPANETHIOL
FDA UNII	9H070UFP2X
NIST Chemistry Reference	1-Propanethiol, 2-methyl-(513-44-0)
EPA Substance Registry System	1-Propanethiol, 2-methyl- (513-44-0)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02,GHS07

Signal word

Danger

Hazard statements

H315+H320-H335-H225

Precautionary statements

P501-P261-P240-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P332+P313-P304+P340+P312-P403+P233-P403+P235-P405

target organs

Respiratory system

PPE

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Codes

F,Xi

Risk Statements

11-36/37/38

Safety Statements

16-26-36

RIDADR

UN 2347 3/PG 2

WGK Germany

RTECS

TZ7630000

TSCA

TSCA listed

HazardClass

3.1

PackingGroup

HS Code

29309090

Storage Class

3 - Flammable liquids

Hazard Classifications

Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3

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
2		0

Isobutylmercaptan price More Price(15)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	W387401	2-Methyl-1-propanethiol ≥95%, FG	513-44-0	1 each	$58	2026-04-30	Buy
Sigma-Aldrich	W387401	2-Methyl-1-propanethiol ≥95%, FG	513-44-0	1kg	$318	2026-04-30	Buy
Sigma-Aldrich	W387401	2-Methyl-1-propanethiol ≥95%, FG	513-44-0	4kg	$1070	2026-04-30	Buy
Sigma-Aldrich	W387401	2-Methyl-1-propanethiol ≥95%, FG	513-44-0	8kg	$2000	2026-04-30	Buy
Sigma-Aldrich	112917	2-Methyl-1-propanethiol 92%, technical grade	513-44-0	100ml	$216	2026-04-30	Buy

Product number	Packaging	Price	Buy
W387401	1 each	$58	Buy
W387401	1kg	$318	Buy
W387401	4kg	$1070	Buy
W387401	8kg	$2000	Buy
112917	100ml	$216	Buy

Isobutylmercaptan Chemical Properties,Uses,Production

Chemical Properties

Liquid; unpleasant odor.

Chemical Properties

2-Methyl-1-propanethiol has a cooked vegetable, almost mustard-like, odor

Occurrence

Reported found in guava, milk, cooked beef, cooked pork and beer.

Uses

Flammable, dangerous fire risk.

General Description

2-methyl-1-propanethiol attaches with L-Cys (the carrier) via a disulfide bond to form the brain-targeted drug delivery systems (BTDS).

Purification Methods

Dissolve the thiol in EtOH, and add to 0.25M Pb(OAc)2 in 50% aqueous EtOH. The precipitated lead mercaptide is filtered off, washed with a little EtOH, and impurities are removed from the molten salt by steam distillation. After cooling, dilute HCl is added dropwise to the residue, and the mercaptan is distilled directly from the flask. Water is separated from the distillate, and the mercaptan is dried (Na2CO3) and distilled under nitrogen. [Mathias J Am Chem Soc 72 1897 1950, Beilstein 1 H 378, 1 I 191, 1 II 412, 1 III 1565, 1 IV 1605.]

Isobutylmercaptan Preparation Products And Raw materials

Raw materials

1-Bromo-2-methylpropane Desiccant Thiourea

Preparation Products

2-Propanesulfinic acid,2-methyl- Isobutanesulfonyl chloride Ethanamine, 2-[(2-methylpropyl)thio]-

Isobutylmercaptan Suppliers

Global( 180)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325	sales1@chuanghaibio.com	China	5214	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21533	55
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29766	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	0531-68652808 18953170293	sales@sdzschem.com	China	2921	58
Jinan Finer Chemical Co., Ltd	+86-531-88989536 +86-15508631887	sales@finerchem.com	China	2945	58
Xiamen AmoyChem Co., Ltd	+86-86-5926051114	sales@amoychem.com	China	6339	58
Changzhou Ditong Chemical Co.,Ltd	+86-0519-88298848	info@edengenechem.com	China	2163	58
CONIER CHEM AND PHARMA LIMITED		sales@conier.com	China	49906	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17339	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +86-189 4982 3763	sales@tnjchem.com	China	34526	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	58
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	58
Jinan Finer Chemical Co., Ltd	58
Xiamen AmoyChem Co., Ltd	58
Changzhou Ditong Chemical Co.,Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
SIMAGCHEM CORP	58
Hefei TNJ Chemical Industry Co.,Ltd.	58

View Lastest Price from Isobutylmercaptan manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-05-28	Isobutylmercaptan 513-44-0	$2.00-5.00	1KG	99%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD
2023-02-13	Isobutanethiol 513-44-0	$10.00	1KG	99%	50MT	Hebei baicao biology science and technology co., ltd
2021-07-13	Isobutylmercaptan 513-44-0	$10.00-15.00	1KG	99%+ HPLC		Zhuozhou Wenxi import and Export Co., Ltd

Isobutylmercaptan
513-44-0
$2.00-5.00
99%
Hebei Chuanghai Biotechnology Co,.LTD

Isobutanethiol
513-44-0
$10.00
99%
Hebei baicao biology science and technology co., ltd

Isobutylmercaptan
513-44-0
$10.00-15.00
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

Isobutylmercaptan Spectrum

Isobutylmercaptan(513-44-0)MS Isobutylmercaptan(513-44-0)¹HNMR Isobutylmercaptan(513-44-0)¹³CNMR Isobutylmercaptan(513-44-0)IR1 Isobutylmercaptan(513-44-0)Raman

513-44-0(Isobutylmercaptan)Related Search:

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Butanethiol Ethanethiol Kresoxim-methyl Isobutyl nitrite Methylparaben

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