2-Amino-5-mercapto-1,3,4-thiadiazole - ≥98%(HPLC) , CAS No.2349-67-9

CAS: 2349-67-9 Cat. No.: A130041 Molecular Weight: 133.2 Beilstein Registry Number: 81728 EC Number: 219-078-4
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(HPLC)
Synonyms
1,4-Thiadiazole-2(3H)-thione, 5-amino- | DTXSID1051486 | 1,3,4-Thiadiazole-2(3H)-thione, 5-amino- | 2-Mercapto-5-amino-1,4-thiadiazole | CCRIS 6893 | DB12348 | 2-Thiol-5-amino-1,4-thiadiazole | 2-Amino-.delta.2-1,3,4-thiadiazoline-5-thione | 5-amino-3H-1,
Storage
Argon charged,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
A130041-25g
8

$12.90

$19.90
Save $7.00 (35.18%)
100g
A130041-100g
4

$25.90

$38.90
Save $13.00 (33.42%)
500g
A130041-500g
1

$68.90

$103.90
Save $35.00 (33.69%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥98%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Argon charged,Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 15 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
1, 4-Thiadiazole-2(3H)-thione, 5-amino- | DTXSID1051486 | 1, 3, 4-Thiadiazole-2(3H)-thione, 5-amino- | 2-Mercapto-5-amino-1, 4-thiadiazole | CCRIS 6893 | DB12348 | 2-Thiol-5-amino-1, 4-thiadiazole | 2-Amino-.delta.2-1, 3, 4-thiadiazoline-5-thione | 5-amino-3H-1,
Specifications & Purity
≥98%(HPLC)
Storage
Argon charged, Room temperature
Shipped In
Normal
Purity
≥98%(HPLC)
Names and Identifiers
Pubchem Sid488192203
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488192203
Canonical SmilesC1(=NNC(=S)S1)N
IUPAC Name5-amino-3H-1,3,4-thiadiazole-2-thione
InChIKeyGDGIVSREGUOIJZ-UHFFFAOYSA-N
INCHI1S/C2H3N3S2/c3-1-4-5-2(6)7-1/h(H2,3,4)(H,5,6)
Isomeric SMILES C1(=NNC(=S)S1)N
WGK Germany 3
RTECS XI4550000
Molecular Weight 133.2
Beilstein 81728
Reaxy-Rn 81728
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=81728&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassThiadiazoles
Intermediate Tree Nodes Aminothiadiazoles
Direct Parent2-amino-1,3,4-thiadiazoles
Alternative Parents Heteroaromatic compounds  Azacyclic compounds  Primary amines  Organosulfur compounds  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents 2-amino-1,3,4-thiadiazole - Heteroaromatic compound - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Primary amine - Organosulfur compound - Organonitrogen compound - Amine - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 2-amino-1,3,4-thiadiazoles. These are thiadiazoles with an amino group attached to the 2-position of a 1,3,4-thiadiazole ring.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
CA2 Tclin Carbonic anhydrase II (17698 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PTGS1 Tclin Cyclooxygenase-1 (9233 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
PTGS2 Tclin Cyclooxygenase-2 (13999 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA1 Tclin Carbonic anhydrase I (13240 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CA9 Tclin Carbonic anhydrase IX (8255 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
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.

21 results found

Lot NumberCertificate TypeDateItem
F2228014Certificate of AnalysisApr 02, 2026 A130041
H2522169Certificate of AnalysisJul 03, 2025 A130041
H2522168Certificate of AnalysisJul 03, 2025 A130041
A2622101Certificate of AnalysisJul 03, 2025 A130041
H2522167Certificate of AnalysisJul 03, 2025 A130041
H2522166Certificate of AnalysisJul 03, 2025 A130041
E2627044Certificate of AnalysisJul 03, 2025 A130041
C2429126Certificate of AnalysisMar 08, 2024 A130041
C2429127Certificate of AnalysisMar 08, 2024 A130041
C2304214Certificate of AnalysisMar 11, 2023 A130041
C2304215Certificate of AnalysisMar 10, 2023 A130041
K2420071Certificate of AnalysisJun 04, 2022 A130041
H2426088Certificate of AnalysisJun 04, 2022 A130041
F2228013Certificate of AnalysisJun 04, 2022 A130041
F2228012Certificate of AnalysisJun 04, 2022 A130041
E2506251Certificate of AnalysisJun 04, 2022 A130041
C2519328Certificate of AnalysisJun 04, 2022 A130041
G2319040Certificate of AnalysisDec 20, 2021 A130041
A2218070Certificate of AnalysisDec 20, 2021 A130041
A2218069Certificate of AnalysisDec 20, 2021 A130041
A2218068Certificate of AnalysisDec 20, 2021 A130041

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Chemical and Physical Properties
Sensitivityair sensitive
Melt Point(°C)235°C
Molecular Weight133.200 g/mol
XLogP30.300
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass132.977 Da
Monoisotopic Mass132.977 Da
Topological Polar Surface Area108.000 Ų
Heavy Atom Count7
Formal Charge0
Complexity129.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Lei Jiang, Xiaoyuan Wang, Jingyi Zhou, Qianqian Fu, Bihu Lv, Yixuan Sun, Liping Song, Youju Huang.  (2023)  Plasmonic Multi-Layered Built-in Hotspots Nanogaps for Effectively Activating Analytes.  Advanced Science,      [PMID:38044318] [10.1002/advs.202306125]
2. Yuan-yuan Zhang, Xiao-jun Wang, Hu Tian, Jin-juan Xing, Lin Liu.  (2023)  Epoxy composite coating with excellent anti-corrosion and self-healing properties based on mesoporous silica nano-containers.  JOURNAL OF MOLECULAR STRUCTURE,      [PMID:] [10.1016/j.molstruc.2023.136538]
3. Liu-Qin Zhang, Hua-Li Li, Xiao-Hu Zhang, Qiu-Ping Li, Shu-Wen Luo, Fa-Qian Liu.  (2022)  Antibiofouling Performance of a Metal-Organic Gel Based on 2-Amino-5-Mercapto-1,3,4-Thiadiazole and CuI.  Advanced Materials Interfaces,  (35): (2201688).  [PMID:] [10.1002/admi.202201688]
4. Yue Zhao, Teng Xu, Jin-He Zhou, Ji-Ming Hu.  (2021)  Superhydrophobic nanocontainers for passive and active corrosion protection.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2021.134039]
5. Chun Kan, Xing Wang, Linyun Wu, Xiaotao Shao, Haizhu Xing, Min You, Jing Zhu.  (2021)  A fluorescent probe for rapid detection of low concentration mercury ions and its application in biological cells.  Analytical Methods,  13  (35): (3987-3993).  [PMID:34528936] [10.1039/D1AY01109J]
6. Ya-Wen Xu, Bo-Hai Zhang, Guo-Ran Li, Sheng Liu, Xue-Ping Gao.  (2019)  Covalently Bonded Sulfur Anchored with Thiol-Modified Carbon Nanotube as a Cathode Material for Lithium–Sulfur Batteries.  ACS Applied Energy Materials,      [PMID:] [10.1021/acsaem.9b01761]
7. Weihua Zheng, Min Zhao, Weifen Liu, Shangmin Yu, Liting Niu, Gengen Li, Haifeng Li, Weilu Liu.  (2018)  Electrochemical sensor based on molecularly imprinted polymer/reduced graphene oxide composite for simultaneous determination of uric acid and tyrosine.  JOURNAL OF ELECTROANALYTICAL CHEMISTRY,      [PMID:] [10.1016/j.jelechem.2018.02.022]
8. Xiaoyu Liang, Yabing Duan, Xiaoyue Yu, Jianxin Wang, Mingguo Zhou.  (2015)  Photochemical degradation of bismerthiazol: structural characterisation of the photoproducts and their inhibitory activities against Xanthomonas oryzae pv. oryzae.  PEST MANAGEMENT SCIENCE,  72  (5): (997-1003).  [PMID:26174501] [10.1002/ps.4080]
9. Dawei Xiang, Hao Wang, Shixing Wang, Manying Zhu, Yuefeng Chen, Xiang Liu, Ping Li, Likang Fu.  (2024)  Efficient capture performance and mechanism of thiadiazole-functionalized covalent organic framework for Pb(II) ion.  Journal of Water Process Engineering,      [PMID:] [10.1016/j.jwpe.2024.105604]
10. Rui Yin, Yuhang Liu, Yi Luo, Jia Yan, Jialiang Li, Duo Chen, Tao Sun, Shichao Li, Zhanjun Wu.  (2025)  Enhancing the liquid oxygen compatibility of epoxy resin by introducing a novel phosphorus / sulfur-containing flame retardant.  POLYMER DEGRADATION AND STABILITY,      [PMID:] [10.1016/j.polymdegradstab.2025.111296]
11. Lijuan Zhu, Chun Feng, Pengao Yu, Yuchi Guo, Zongxue Yu, Xiaofeng Bai, Yuji Li.  (2025)  Dual-Layer Anticorrosion Coating: Advanced Multifunctional Coating with Both Superhydrophobicity and pH-Responsive Behavior.  LANGMUIR,      [PMID:40990381] [10.1021/acs.langmuir.5c03577]
12. Jing Li, Ying-Xia Ma, Shi-Fan Chang, Wen-Jing Li, Rui-Xiang Wu, Zhi-Da Wang, Yu-Ting Chai, Fen Ran.  (2025)  Fabrication of S, N and O conjugated coordination Ni-MOFs with high electrochemical performance for self-regenerative asymmetric supercapacitor.  JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,      [PMID:] [10.1016/j.jpcs.2025.113062]
13. Xuyuan Sun, Minmin Liu, Ying Wang, Zhengyuan Dai, Li Li, Yaping Ding.  (2025)  A molecularly imprinted electrochemical sensor based on dual functional monomers for trace determination of ramipril.  MICROCHEMICAL JOURNAL,      [PMID:] [10.1016/j.microc.2025.114311]
14. Jing Li, Ying-Xia Ma, Shi-Fan Chang, Jia-Qi Liu, Fei Wang, Fen Ran, Pei-Qing La.  (2025)  Fabrication of novel MOFs based on the strategy of dual ligands and heterometallic doping for high performance supercapacitors.  JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,      [PMID:] [10.1016/j.jpcs.2025.113418]
15. Kai Li, Rongguo Sun.  (2025)  Bifunctional N/S-Coordinated Thiadiazole–Triazine Porous Organic Polymer for Efficient Hg(II) Immobilization in Aqueous–Soil Systems.  Processes,  13  (11): (3652).  [PMID:] [10.3390/pr13113652]
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