JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

This is a demo store. No orders will be fulfilled.

Account

Settings

Language

྾

Home
Chemistry & Biochemicals
Building Blocks
Organic Building Blocks
2-Mercapto-1,3,4-thiadiazole - 98%, high purity , CAS No.18686-82-3

Skip to the end of the images gallery

Skip to the beginning of the images gallery

2-Mercapto-1,3,4-thiadiazole - 98%, high purity , CAS No.18686-82-3

3 Citations

COA

Grade & Purity:

≥98%

Cas Number: 18686-82-3
Molecular Weight: 118.17
MDL number: MFCD00040404
PubChem CID: 3034302
PubChem SID: 488194211

In stock

Item Number

M107534

Grouped product items
SKU	Size	Availability	Price
M107534-10g	10g	4	$33.90
M107534-25g	25g	3	$63.90
M107534-50g	50g	1	$114.90
M107534-100g	100g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$206.90
M107534-500g	500g	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$129.90

View related series

Five-Membered Heterocyclic Compounds (2064) Thiadiazoles (58)

Basic Description

Synonyms	1,3,4-Thiadiazole-2(3H)-thione \| AKOS000120555 \| STL301389 \| 2-MERCAPTO THIADIAZOLE \| AKOS028108738 \| BP-12496 \| [1,3,4]thiadiazol-2-thiol \| EINECS 242-504-5 \| NSC 184817 \| T2884 \| W-107777 \| FT-0612740 \| 1,3,4-thiadiazole-2-thione \| 5-Mercapto-1,3,4-thia
Specifications & Purity	≥98%
Storage Temp	Argon charged
Shipped In	Normal

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organoheterocyclic compounds
  - Class Azoles
    - Subclass Thiadiazoles

Kingdom	Organic compounds
Superclass	Organoheterocyclic compounds
Class	Azoles
Subclass	Thiadiazoles
Intermediate Tree Nodes	Not available
Direct Parent	Thiadiazoles
Alternative Parents	Heteroaromatic compounds Azacyclic compounds Organosulfur compounds Organonitrogen compounds Hydrocarbon derivatives
Molecular Framework	Aromatic heteromonocyclic compounds
Substituents	Heteroaromatic compound - Thiadiazole - Azacycle - Organic nitrogen compound - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Aromatic heteromonocyclic compound
Description	This compound belongs to the class of organic compounds known as thiadiazoles. These are cyclic organic compounds containing a thiadiazole ring, which is a five-membered aromatic heterocycle made up of one sulfur atom and two nitrogen atoms.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

Pubchem Sid	488194211
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/488194211
IUPAC Name	3H-1,3,4-thiadiazole-2-thione
INCHI	InChI=1S/C2H2N2S2/c5-2-4-3-1-6-2/h1H,(H,4,5)
InChIKey	JLAMDELLBBZOOX-UHFFFAOYSA-N
Smiles	C1=NNC(=S)S1
Isomeric SMILES	C1=NNC(=S)S1
Molecular Weight	118.17
Reaxy-Rn	1725
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1725&ln=

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot Number	Certificate Type	Date	Item
I2109398	Certificate of Analysis	Jun 09, 2025	M107534
I2109401	Certificate of Analysis	Jun 09, 2025	M107534
K1819046	Certificate of Analysis	Sep 19, 2022	M107534
B2302458	Certificate of Analysis	Jun 09, 2021	M107534

Chemical and Physical Properties

Solubility	Soluble in methanol.
Sensitivity	Air sensitive
Melt Point(°C)	145 °C
Molecular Weight	118.190 g/mol
XLogP3	0.900
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	117.966 Da
Monoisotopic Mass	117.966 Da
Topological Polar Surface Area	81.800 Å²
Heavy Atom Count	6
Formal Charge	0
Complexity	97.700
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

Citations of This Product

How to Cite Aladdin Scientific Products?

1. Feng Li, Weidong Gu, Qiang Gao, Yi Tan, Cheng Li, Christian Sonne, Jianzhang Li, Ki-Hyun Kim. (2023) Scalable Underwater Adhesives with High-Strength, Long-Term, and Harsh-Environment Adhesion Enabled by Heterocyclic Chemistry. ACS Applied Materials & Interfaces, 15 (31): (37925–37935).
2. Fazal Muhammad Khoso, Jin-Gang Yu. (2025) A novel 3D N-, S-rich GO composite: Preparation, characterization and its selective adsorption properties for Cd2+ from aqueous solution. Journal of the Taiwan Institute of Chemical Engineers, 169 (105972).
3. Hui Wang, Yuhan Xiong, Liang Wang, Yi He, Meihui Chen, Jie Ding, Nanqi Ren. (2024) Structural design of thiadiazole-based donor–acceptor COF/Fe-doped N vacancy g-C3Nx nanosheets for photocatalytic nitrogen fixation under visible light. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 662 (357).

Solution Calculators

Molarity Calculator

Determine the necessary mass, volume, or concentration for preparing a solution.

Mass

Concentration

Volume

M. Wt*

g/mol

*When preparing stock solutions, always use the batch-specific molecular weight of the product found on the vial label and the Certificate of Analysis (available online).

Dilution Calculator

Determine the dilution needed to prepare a stock solution.

Concentration 1 (C1)

Volume 1 (V1)

Concentration 2 (C2)

Volume 2 (V2)

Reconstitution Calculator

The reconstitution calculator enables you to quickly determine the volume of a reagent needed to reconstitute your vial. Just enter the mass of the reagent and the target concentration, and the calculator will do the rest.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

Reviews

Shall we send you a message when we have discounts available?

Remind me later

Thank you! Please check your email inbox to confirm.

Oops! Notifications are disabled.