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2-Butanethiol

CAS No.
513-53-1
Chemical Name:
2-Butanethiol
Synonyms
sec-C4H9SH;Butan-2-thiol;S-Butanethiol;2-BUTANETHIOL;sec-butylthiol;sec-Butyl thiol;SEC-BUTANETHIOL;2-Mercaptobutane;2-Butyl mercaptan;S-BUTYL MERCAPTAN
CBNumber:
CB8429566
Molecular Formula:
C4H10S
Molecular Weight:
90.19
MDL Number:
MFCD00004865
MOL File:
513-53-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 05:15:36

2-Butanethiol Properties

Melting point -165°
Boiling point 84.6-85.2 °C(lit.)
Density 0.83 g/mL at 25 °C(lit.)
vapor pressure 142 mm Hg ( 37.7 °C)
refractive index n20/D 1.436(lit.)
FLAVIS Number 12.104 | Butane-2-thiol
Flash point 70 °F
storage temp. Store below +30°C.
solubility 1.32g/l
form liquid
pka 10.92±0.10(Predicted)
Specific Gravity 0.83
color Colorless to Almost colorless
Odor sulfurous
Odor Threshold 0.00003ppm
explosive limit 1.7-9.6%(V)
Merck 14,1578
Henry's Law Constant 1.3×10-3 mol/(m3Pa) at 25℃, Plyasunova et al. (2004)
InChI 1S/C4H10S/c1-3-4(2)5/h4-5H,3H2,1-2H3
InChIKey LOCHFZBWPCLPAN-UHFFFAOYSA-N
SMILES SC(CC)C
LogP 2.180
CAS DataBase Reference 513-53-1(CAS DataBase Reference)
FDA UNII Y2D731QBYN
NIST Chemistry Reference 2-Butanethiol(513-53-1)
EPA Substance Registry System 2-Butanethiol (513-53-1)
UNSPSC Code 12352105
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)Environment (GHS09)
GHS02,GHS07,GHS09
Signal word  Danger
Hazard statements  H315-H319-H317-H335-H411-H225
Precautionary statements  P501-P273-P272-P240-P261-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P391-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P333+P313-P304+P340+P312-P403+P233-P403+P235-P405
Hazard Codes  F,Xi
Risk Statements  11-36/37/38
Safety Statements  16-26-36
RIDADR  UN 2347 3/PG 2
WGK Germany  3
13
TSCA  TSCA listed
HazardClass  3.1
PackingGroup  II
HS Code  29309070
Storage Class 3 - Flammable liquids
Hazard Classifications Flam. Liq. 2
Hazardous Substances Data 513-53-1(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 5176 mg/kg LD50 dermal Rabbit > 2000 mg/kg
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

2-Butanethiol price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.01818 2-Butanethiol for synthesis 513-53-1 250ml $270 2026-04-30 Buy
Sigma-Aldrich 8.01818 2-Butanethiol for synthesis 513-53-1 5ML $27 2025-07-31 Buy
TCI Chemical B0686 sec-Butyl Mercaptan >97.0%(GC) 513-53-1 25mL $43 2026-04-30 Buy
TCI Chemical B0686 sec-Butyl Mercaptan >97.0%(GC) 513-53-1 500mL $240 2024-03-01 Buy
TRC TRC-B692690-5G sec-Butyl Mercaptan 513-53-1 5g $91 2026-06-03 Buy
Product number Packaging Price Buy
8.01818 250ml $270 Buy
8.01818 5ML $27 Buy
B0686 25mL $43 Buy
B0686 500mL $240 Buy
TRC-B692690-5G 5g $91 Buy

2-Butanethiol Chemical Properties, Uses, Production

Uses

sec-Butyl Mercaptan is used in the preparation of arylsulfides via palladium catalyzed thioetherification of aryl bromides and iodides.

Purification Methods

Purify it as for 1-butanethiol. [Beilstein 1 IV 1584.]

2-Butanethiol Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 155)
Supplier Tel Email Country ProdList Advantage
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16305 64
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Shijiazhuang Lida Chemical Co., Ltd. +86 (311) 8573-7996 service@lid-ff.cn China 294 65
Maya High Purity Chemicals +86 (573) 82222445 (0)18006601000 452520369 sales@maya-r.com China 11693 57
Spectrum Chemical Manufacturing Corp. 021-021-021-67601398-809-809-809 15221380277 marketing_china@spectrumchemical.com China 9643 60
Chengdu Ai Keda Chemical Technology Co., Ltd. 4008-755-333 18080918076 800078821@qq.com China 9706 55
Shanghai civi chemical technology co.,Ltd 86-21-34053660 sale@labgogo.com China 9853 52

View Latest Price from 2-Butanethiol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-butanethiol pictures 2026-09-02 2-butanethiol
513-53-1
20kg 99% 20 tons Qingdao RENAS Polymer Material Co., Ltd.
2-Butanethiol pictures 2024-11-18 2-Butanethiol
513-53-1
$475.00 98 5000 Kg R&D Scientific Inc.
1-Methyl-1-propanethiol  pictures 2020-02-26 1-Methyl-1-propanethiol
513-53-1
100g 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd
  • 2-butanethiol pictures
  • 2-butanethiol
    513-53-1
  • $0.00
  • 99%
  • Qingdao RENAS Polymer Material Co., Ltd.
2-BUTANETHIOL 98+% SEC-BUTYL MERCAPTAN 93+% S-Butanethiol Butan-2-thiol 1-METHYL-1-PROPANETHIOL 98% sec-Butyl mercaptan, Mercaptan C4 Inchi=1/C4H10S/C1-3-4(2)5/H4-5H,3H2,1-2h 2-BUTANETHIOL FOR SYNTHESIS 5 ML 2-BUTANETHIOL FOR SYNTHESIS 250 ML (±)-butane-2-thiol 2-Mercaptobutane mercaptanbutyliquesecondaire Sec-butyl hydrosulfide sec-Butyl thioalcohol sec-Butyl thiol sec-butylthioalcohol sec-butylthiol sec-C4H9SH Secondary butylmercaptan secondarybutylmercaptan 2-Butyl mercaptan 2-BUTANETHIOL 1-METHYL-1-PROPANTHIOL 1-METHYL-1-PROPANETHIOL S-BUTYL MERCAPTAN SEC-BUTYL MERCAPTAN SEC-BUTANETHIOL sec-Butyl Mercaptan > 2-Butanethiol USP/EP/BP 1-Methyl-propane-1-thiol 513-53-1 2-Butanethiol 2-Butanethiol (7CI, 8CI, 9CI, ACI) 513-53-1 91840992 513531 CeH5CHCH3SH CH3CH2CHSHCH3 Organic Building Blocks Thiols/Mercaptans Sulfur Compounds Building Blocks thiol Flavor