1639-09-4 Usage
Description
1-Heptanethiol is a colorless liquid with a strong, unpleasant odor, characterized by an onion-like aroma. It has a melting point of -41.3°C, a boiling point of 177°C, and a density of 0.84 g cm-3. 1-Heptanethiol is insoluble in water and is known for its flammability.
Uses
1. Used in the Chemical Industry:
1-Heptanethiol is used as a chemical intermediate for the synthesis of various organic compounds, taking advantage of its reactive thiol group and its ability to undergo a range of chemical reactions.
2. Used in the Flavor and Fragrance Industry:
1-Heptanethiol is used as a flavoring agent, particularly to impart an onion-like aroma to foods and beverages. Its high strength odor makes it suitable for use in the creation of artificial flavors at low concentrations.
3. Used in the Pharmaceutical Industry:
1-Heptanethiol can be used as a building block for the development of pharmaceutical compounds, leveraging its unique chemical properties to create new therapeutic agents.
4. Used in the Rubber Industry:
1-Heptanethiol is used as an accelerator in the vulcanization process of rubber, enhancing the speed and efficiency of rubber production.
5. Used in the Petroleum Industry:
1-Heptanethiol is employed as a corrosion inhibitor in the petroleum industry, helping to protect pipelines and storage tanks from the corrosive effects of sulfur-containing compounds.
6. Used in the Environmental Industry:
1-Heptanethiol can be used in the detection and monitoring of volatile organic compounds (VOCs) due to its strong odor and high sensitivity, making it a valuable tool in environmental protection efforts.
Reactivity Profile
1-Heptanethiol is combustible (flash point at or above 100°F and below140°F). Incompatible with oxidizing agents, strong acids and strong bases, alkali metals, and nitric acid. Can react with water, steam or acids to produce toxic and flammable vapors. Reacts violently with powerful oxidizing agents such as calcium hypochlorite(Ca(OCl)2) to generate SOx. Reacts with hydrides to form flammable H2 gas; reacts with halogenated hydrocarbons to yield HX. Reacts exothermically with aldehydes. Emits toxic compounds of sulfur when when heated to decomposition.
Potential Exposure
Used as a chemical intermediate for
fuels, dyes, pharmaceuticals; and to make other chemicals.
Shipping
UN1228 Mercaptans, liquid, flammable, toxic,
n.o.s. or Mercaptan mixtures, liquid, flammable, toxic,
n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid,
6.1-Poisonous materials, Technical Name Required.
Incompatibilities
Incompatible with oxidizers (chlorates,
nitrates, peroxides, permanganates, perchlorates, chlorine,
bromine, fluorine, etc.); contact may cause fires or explo sions. Keep away from alkaline materials, strong bases,
strong acids, oxoacids, epoxides, alkali metals and reducing
agents.
Check Digit Verification of cas no
The CAS Registry Mumber 1639-09-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,3 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1639-09:
(6*1)+(5*6)+(4*3)+(3*9)+(2*0)+(1*9)=84
84 % 10 = 4
So 1639-09-4 is a valid CAS Registry Number.
InChI:InChI=1/C7H16S/c1-2-3-4-5-6-7-8/h8H,2-7H2,1H3
1639-09-4Relevant articles and documents
Two-step three-component process for one-pot synthesis of 8-alkylmercaptocaffeine derivatives
Rad, M. N. Soltani,Maghsoudi
, p. 70335 - 70342 (2016/08/06)
A highly efficient, odourless and two-step three-component process for one-pot synthesis of some 8-alkylmercaptocaffeine derivatives has been described. The catalyst-free three-component reaction of alkyl bromides, thiourea, and 8-bromocaffeine gave 8-alkylmercaptocaffeine products in excellent to quantitative yields. In addition, the impact of parameters on sample reaction is discussed.
Synthesis and antifungal activities of alkyl N-(1,2,3-thiadiazole-4-carbonyl) carbamates and S-alkyl N-(1,2,3-thiadiazole-4-carbonyl) carbamothioates
Li, Zaifeng,Wu, Zengru,Luo, Fuying
, p. 3872 - 3876 (2007/10/03)
A series of alkyl N-(1,2,3-thiadiazole-4-carbonyl) carbamates and S-alkyl N-(1,2,3-thiadiazole-4-carbonyl) carbamothioates with unsubstituted or monobrominated straight chain alkyl groups were synthesized and evaluated as fungistatic agents against Gibberella zeae and Altemaria kikuchiana. These compounds showed variable antifungal activities at concentrations of 5 and 50 μg/mL The results showed that antifungal activities depended on the length of the alkyl chain with the optimal chain length of 6-11 carbons. Carbamic acid, (1,2,3-thiadiazole-4-ylcarbonyl)-, hexyl ester (4) showed a strong fungistatic activity against A. kikuchiana at both concentrations, with 90.7 and 54% growth inhibition at 50 and 5 μg/mL, respectively. Carbamic acid, (1,2,3-thiadiazole-4-ylcarbonyl)-, heptyl ester (5); Carbamic acid, (1,2,3-thiadiazole-4-ylcarbonyl)-, octyl ester (6); and Carbamic acid, (1,2,3-thiadiazole-4-ylcarbonyl)-, undecyl ester (9) showed strong fungistatic activity against G. zeae at both concentrations. Their growth inhibitions against G. zeae at the concentration of 5 μg/mL were 78, 63, and 59%, respectively.
Carbanions Derived from 2-Alkylthiobenzothiazoles. A Novel α-Lithiomethyl Mercaptan Synthon for Mercaptomethylation.
Katritzky, Alan R.,Aurrecoechea, Jose M.,Vazques de Miguel, Luis M.
, p. 769 - 774 (2007/10/02)
2-Methylthiobenzothiazole readily gives a methyl group lithio derivative which reacts cleanly with electrophiles.The products are conveniently converted into the corresponding thiols by BuLi at -78 deg C, and this sequence thus provides a convenient two-step mercaptomethylation procedure for alkyl halides, aldehydes, and ketones.