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1878-18-8

2-Methyl-1-butanethiol, a clear colorless liquid with a disagreeable odor, is a thiol compound prepared from 2-methyl-1-butyl isothiourea picrate by conversion to bis[(s)-2-methylbutyl] disulfide, followed by reduction to the corresponding thiol using sodium metal in liquid ammonia. It is known for its anti-inflammatory properties and has been reported to occur in the petroleum fraction boiling between 111 and 150°C, as well as in cooked beef.

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  • 1878-18-8 Structure

  • Basic information

    1. Product Name: 2-Methyl-1-butanethiol
    2. Synonyms: FEMA 3303;2-METHYL-1-BUTANETHIOL 95+%;1-Butanethiol, 2-methyl-;2-METHYL-1-BUTANETHIOL FEMA NO.--------;1-Mercapto-2-methylbutane;2-Methyl-1-butanethiol, 95% 25GR;2-methyl-1-butanethio;2-methyl-butane-1-thiol
    3. CAS NO:1878-18-8
    4. Molecular Formula: C5H12S
    5. Molecular Weight: 104.21
    6. EINECS: 217-515-3
    7. Product Categories: thiol Flavor;Alphabetical Listings;Flavors and Fragrances;M-N;Organic Building Blocks;Sulfur Compounds;Thiols/Mercaptans
    8. Mol File: 1878-18-8.mol

  • Chemical Properties

    1. Melting Point: -109.95°C (estimate)
    2. Boiling Point: 116-117 °C(lit.)
    3. Flash Point: 67 °F
    4. Appearance: /liquid (estimate)
    5. Density: 0.848 g/mL at 25 °C(lit.)
    6. Vapor Pressure: 41.4 mm Hg ( 37.7 °C)
    7. Refractive Index: n20/D 1.447(lit.)
    8. Storage Temp.: Flammables area
    9. Solubility: N/A
    10. PKA: 10.41±0.10(Predicted)
    11. Sensitive: Air Sensitive
    12. CAS DataBase Reference: 2-Methyl-1-butanethiol(CAS DataBase Reference)
    13. NIST Chemistry Reference: 2-Methyl-1-butanethiol(1878-18-8)
    14. EPA Substance Registry System: 2-Methyl-1-butanethiol(1878-18-8)

  • Safety Data

    1. Hazard Codes: F,Xi,Xn
    2. Statements: 11-36/37/38-20/21/22
    3. Safety Statements: 16-26-33-36/37/39
    4. RIDADR: UN 1111 3/PG 2
    5. WGK Germany: 3
    6. RTECS:
    7. TSCA: Yes
    8. HazardClass: 3
    9. PackingGroup: II
    10. Hazardous Substances Data: 1878-18-8(Hazardous Substances Data)

1878-18-8 Usage

Uses

Used in Pharmaceutical Industry:
2-Methyl-1-butanethiol is used as an anti-inflammatory agent for its ability to reduce inflammation and alleviate pain. Its application in this industry is due to its therapeutic effects on various inflammatory conditions.
Used in Flavor and Fragrance Industry:
2-Methyl-1-butanethiol is used as a flavoring agent for its distinctive odor, which can be utilized to enhance the aroma of various products. Its application in this industry is due to its ability to contribute a unique scent to fragrances and flavorings.
Used in Chemical Synthesis:
2-Methyl-1-butanethiol is used as a building block or intermediate in the synthesis of various organic compounds. Its application in this industry is due to its reactivity and versatility in chemical reactions, allowing for the creation of a wide range of products.
Used in Petroleum Industry:
2-Methyl-1-butanethiol is used in the petroleum industry, where it is found in the fraction boiling between 111 and 150°C. Its application in this industry is due to its presence in petroleum products and potential use in refining processes or as an additive to enhance certain properties of the final product.

Preparation

From 2-methyl-1-butyl isothiourea picrate by conversion to bis [(s)-2-methylbutyl] disulfide, followed by reduction to the corresponding thiol, using sodium metal in liquid ammonia.

Check Digit Verification of cas no

The CAS Registry Mumber 1878-18-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,7 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1878-18:
(6*1)+(5*8)+(4*7)+(3*8)+(2*1)+(1*8)=108
108 % 10 = 8
So 1878-18-8 is a valid CAS Registry Number.
InChI:InChI=1/C5H12S/c1-3-5(2)4-6/h5-6H,3-4H2,1-2H3/t5-/m0/s1

1878-18-8 Well-known Company Product Price

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  • (Code)Product description
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  • Alfa Aesar

  • (B21949)  2-Methyl-1-butanethiol, 99%   

  • 1878-18-8

  • 5g

  • 719.0CNY

  • Detail

  • Alfa Aesar

  • (B21949)  2-Methyl-1-butanethiol, 99%   

  • 1878-18-8

  • 25g

  • 1232.0CNY

  • Detail

1878-18-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-?Butanethiol, 2-?methyl-

1.2 Other means of identification

Product number -
Other names 2-methy-1-butanethiol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1878-18-8 SDS

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