Determine the necessary mass, volume, or concentration for preparing a solution.
≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
1,3-Propanedithiol is used for the protection of aldehydes and ketones via their reversible formation of dithianes. It is a dithiol used in self-assembled monolayers (SAMs).
1,3-Propanedithiol is used as a reagent in the preparation of thioketals and thioacetals. It acts as a flavoring agent. It is used as a precursor in the synthesis of cyclic dithioacetal (1,3-dithiane) derivatives of carbonyl compounds. It is involved in the preparation of diiron propanedithiolate hexacarbonyl by reacting reaction with triiron dodecacarbonyl. Further, it is used for the protection of aldehydes and ketones through their reversible formation of dithianes. In addition to this, it reacts with metal ions to form chelate rings.
| Canonical Smiles | C(CS)CS |
|---|---|
| IUPAC Name | propane-1,3-dithiol |
| InChIKey | ZJLMKPKYJBQJNH-UHFFFAOYSA-N |
| INCHI | 1S/C3H8S2/c4-2-1-3-5/h4-5H,1-3H2 |
| Isomeric SMILES | C(CS)CS |
| WGK Germany | 3 |
| RTECS | TZ2585500 |
| UN Number | 3336 |
| Packing Group | I |
| Molecular Weight | 108.23 |
| Beilstein | 1071197 |
| Reaxy-Rn | 1071197 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1071197&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organosulfur compounds |
| Class | Thiols |
| Subclass | Alkylthiols |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Alkylthiols |
| Alternative Parents | Hydrocarbon derivatives |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Alkylthiol - Hydrocarbon derivative - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as alkylthiols. These are organic compounds containing the thiol functional group linked to an alkyl chain. |
| External Descriptors | dithiol |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Jun 10, 2026 | P100845 | |
| Certificate of Analysis | Jun 10, 2026 | P100845 | |
| Certificate of Analysis | Jun 10, 2026 | P100845 | |
| Certificate of Analysis | Sep 09, 2025 | P100845 | |
| Certificate of Analysis | Sep 09, 2025 | P100845 | |
| Certificate of Analysis | Aug 04, 2025 | P100845 | |
| Certificate of Analysis | Oct 11, 2024 | P100845 | |
| Certificate of Analysis | Mar 20, 2024 | P100845 | |
| Certificate of Analysis | Mar 20, 2024 | P100845 | |
| Certificate of Analysis | Mar 20, 2024 | P100845 | |
| Certificate of Analysis | Jun 29, 2022 | P100845 | |
| Certificate of Analysis | Jun 29, 2022 | P100845 |
| Solubility | Slightly soluble in water. Miscible with alcohol, ether, chloroform, etherMiscible with alcohol, ether, chloroform and ether. Slightly miscible with water. |
|---|---|
| Refractive Index | 1.538-1.542 |
| Flash Point(°F) | 141.8 °F |
| Flash Point(°C) | 58℃ |
| Boil Point(°C) | 169°C |
| Melt Point(°C) | -79°C |
| Molecular Weight | 108.230 g/mol |
| XLogP3 | 1.200 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 108.007 Da |
| Monoisotopic Mass | 108.007 Da |
| Topological Polar Surface Area | 2.000 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 12.400 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Chaoji Xiong, Hao Wang, Lihua Deng, Kun Liang, Chunhua Wu, Wei Wu, Qian Chen. (2023) Novel triazine-based sulfur-containing polyamides: Preparation, adsorption efficiency and mechanism for mercury ions. EUROPEAN POLYMER JOURNAL, [PMID:] [10.1016/j.eurpolymj.2023.112588] |
| 2. Jiawei Li, Chaoying Hu, Bin Yang, Zhao Ning, Yanning Zeng. (2022) Recyclable, self-healing itaconic acid-based polyurethane networks with dynamic boronic ester bonds for recoverable adhesion application. POLYMER, [PMID:] [10.1016/j.polymer.2022.125227] |
| 3. Shiqiang Yang, Zhongfei Zhang, Jiaoyong Li, Yuge Niu, Liangli Lucy Yu. (2021) Inhibition Mechanism of L-Cysteine on Maillard Reaction by Trapping 5-Hydroxymethylfurfural. Foods, 10 (6): (1391). [PMID:34208512] [10.3390/foods10061391] |
| 4. Wu Bin Ying, Haixiong Liu, Peiyuan Gao, Zhengyang Kong, Han Hu, Kai Wang, Ang Shen, Zhijin Jin, Lin Zheng, Hongxia Guo, Ruoyu Zhang, Jin Zhu. (2020) An anti-stress relaxation, anti-fatigue, mildew proof and self-healing poly(thiourethane-urethane) for durably stretchable electronics. CHEMICAL ENGINEERING JOURNAL, [PMID:] [10.1016/j.cej.2020.127691] |
| 5. Panpan Zhang, Gulijamal Arken, Guixin Li, Ming Guan, Shuge Tian. (2017) A Novel Photo-Induced Electrochemical Biosensing Method Based on Fluorescent Labeled Molecular Beacon. ELECTROANALYSIS, 29 (5): (1310-1315). [PMID:] [10.1002/elan.201600790] |
| 6. Biao Gu, Liyan Huang, Wei Su, Xiaoli Duan, Haitao Li, Shouzhuo Yao. (2016) A benzothiazole-based fluorescent probe for distinguishing and bioimaging of Hg2+ and Cu2+. ANALYTICA CHIMICA ACTA, [PMID:28081819] [10.1016/j.aca.2016.11.044] |
| 7. Lingxiao Gu, Qingquan Xue, Shusen Peng, Gang Wang, Jin Han, Xuedong Wu. (2015) A novel and facile strategy to inhibit corrosion: thiol-click synthesis of polythiols and their skinning on a metal surface to form super thick protective films. Polymer Chemistry, 7 (3): (625-632). [PMID:] [10.1039/C5PY01517K] |
| 8. Gong Huameng, Xie Zhifei, Liu Mingxing, Sun Honghao, Zhu Hongda, Guo Huiling. (2015) Research on redox-responsive mesoporous silica nanoparticles functionalized with PEG via a disulfide bond linker as drug carrier materials. COLLOID AND POLYMER SCIENCE, 293 (7): (2121-2128). [PMID:] [10.1007/s00396-015-3595-7] |
| 9. Xiujuan Jiang, Li Long, Hailong Wang, Limei Chen, Xiaoming Liu. (2014) Diiron hexacarbonyl complexes as potential CO-RMs: CO-releasing initiated by a substitution reaction with cysteamine and structural correlation to the bridging linkage. DALTON TRANSACTIONS, 43 (26): (9968-9975). [PMID:24850056] [10.1039/C3DT53620C] |
| 10. Tao Luo, Min He, Chao Gao, Jin-Huai Liu, Xing-Jiu Huang. (2014) Specific size-matching strategy for electrochemical selective and sensitive detection of mercury(II) based on a three-dimensional-gap-net in a Au–thiol coordination polymer. ELECTROCHEMISTRY COMMUNICATIONS, [PMID:] [10.1016/j.elecom.2014.02.002] |
| 11. Bin Xu, Zhong-Ming Xia, Rui Zhan, Ke-Ke Yang. (2024) Fabricating High Strength Bio-Based Dynamic Networks from Epoxidized Soybean Oil and Poly(Butylene Adipate-co-Terephthalate). Polymers, 16 (16): (2280). [PMID:39204500] [10.3390/polym16162280] |
| 12. Yi Ding, Yu Bai, Tianci Wang, Zan Gao, Yinong Gao, Xiao Wang, Bingyang Li, Pengfei Wang, Chunai Dai, Xin Wang, Zhen Li. (2025) Strong and Tough Liquid Crystal Elastomers Reinforced by Cellulose Nanocrystals for Energy Absorption. POLYMER COMPOSITES, [PMID:] [10.1002/pc.70241] |
| 13. Xiang-yu Kong, Shao-Min Shuang, Yue-tao Zhang, Yu Wang, Chuan Dong. (2022) Dicyanoisophorone-based fluorescent probe with large Stokes shift for ratiometric detection and imaging of exogenous/endogenous hypochlorite in cell and zebrafish. TALANTA, [PMID:35189411] [10.1016/j.talanta.2022.123293] |
| 14. Yi Ding, Xin Wang, Yu Bai, Bingyang Li, Xiao Wang, Yinong Gao, Chunai Dai, Zhen Li, Pengfei Wang. (2025) Mesoporous silica nanoparticles doped in liquid crystal elastomers for synergetically enhancing vibration damping and energy absorption properties. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, [PMID:] [10.1016/j.colsurfa.2025.137334] |