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109207

Sigma-Aldrich

2-Methyl-2-propanethiol

99%

Synonym(s):

tert-Butyl mercaptan, TBM

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About This Item

Linear Formula:
(CH3)3CSH
CAS Number:
75-66-1
Molecular Weight:
90.19
Beilstein:
505947
EC Number:
200-890-2
MDL number:
MFCD00004857
UNSPSC Code:
12352100
PubChem Substance ID:
24846894
NACRES:
NA.22
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vapor density

3.1 (vs air)

Quality Level

100

vapor pressure

303.5 mmHg ( 37.7 °C)

Assay

99%

refractive index

n20/D 1.423 (lit.)

bp

62-65 °C (lit.)

mp

-0.5 °C (lit.)

solubility

H2O: slightly soluble
alcohol: very soluble
diethyl ether: very soluble

density

0.8 g/mL at 25 °C (lit.)

functional group

thiol

SMILES string

CC(C)(C)S

InChI

1S/C4H10S/c1-4(2,3)5/h5H,1-3H3

InChI key

WMXCDAVJEZZYLT-UHFFFAOYSA-N

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General description

2-Methyl-2-propanethiol undergoes ring opening nucleophilic reaction with 3-isothiazolones and reaction kinetics studies suggested reaction was second order in thiol and third order overall[1].

Application

2-Methyl-2-propanethiol was used in reaction of 2-methyl-2-propanethiol on Mo(110) using temperature programmed reaction, high resolution electron enegy loss and X-ray photoelectron spectroscopies[2]. It was used in the synthesis of chain-transfer agents for reversible addition-fragmentation chain-transfer copolymerization of vinylidene chloride and methyl acrylate[3].

Signal Word

Danger

Hazard Statements

H225,H317,H411

Hazard Classifications

Aquatic Chronic 2 - Flam. Liq. 2 - Skin Sens. 1B

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

<-13.0 °F - closed cup

Flash Point(C)

< -25 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SHBN4590
13396CM
05418DJ
08216AJ
06330CD

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Reversible addition-fragmentation chain-transfer (RAFT) copolymerization of vinylidene chloride and methyl acrylate.
Severac R, et al.
Polymer International, 51(10), 1117-1122 (2002)
Suzaan Marais et al.
The Journal of infectious diseases, 215(5), 677-686 (2016-12-10)
Tuberculous meningitis (TBM) is a frequent cause of meningitis in individuals with human immunodeficiency virus (HIV) infection, resulting in death in approximately 40% of affected patients. A severe complication of antiretroviral therapy (ART) in these patients is neurological tuberculosis-immune reconstitution
Ursula K Rohlwink et al.
Nature communications, 10(1), 3767-3767 (2019-08-23)
Tuberculous meningitis (TBM) is the most severe form of TB with high rates of mortality and morbidity. Here we conduct RNA-sequencing on whole blood as well as on ventricular and lumbar cerebrospinal fluid (CSF) of pediatric patients treated for TBM.
Koen Ameloot et al.
European heart journal, 40(22), 1804-1814 (2019-03-22)
During the first 6-12 h of intensive care unit (ICU) stay, post-cardiac arrest (CA) patients treated with a mean arterial pressure (MAP) 65 mmHg target experience a drop of the cerebral oxygenation that may cause additional cerebral damage. Therefore, we investigated whether
Ida Hartvig et al.
Ecology and evolution, 8(1), 530-545 (2018-01-13)
Indochina is a biodiversity hot spot and harbors a high number of endemic species, most of which are poorly studied. This study explores the genetic structure and reproductive system of the threatened endemic timber species
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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