4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole(AHMT) - ≥97% , CAS No.1750-12-5

CAS: 1750-12-5 Cat. No.: A778203 Molecular Weight: 146.17 Beilstein Registry Number: 134867 EC Number: 217-135-8
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
AMHT | 4-Amino-5-hydrazino-1,2,4-triazole-3-thiol | 4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole | Purpald | 4-Amino-3-hydrazino-1,2,4-triazol-5-thiol
Storage
Protected from light,Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
A778203-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$14.90
5g
A778203-5g
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$51.90
25g
A778203-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$191.90
100g
A778203-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$494.90
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Protected from light,Store at -20°C,Argon charged Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

Cited in 12 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

for Determination of Aldehydes

Application:

it was used for determination of bacterial polysaccharides containing substituted or unsubstituted glycol in residues such as glycerol, ribitol, arabinitol, furanosyl galactose and sialic acid
It was used as chromogen during the determination of catalase activity in small tissue samples.
It was used as reagent in determination of formaldehyde.
It was used for derivatization of neutral monosaccharides during HPLC

Specifications

Synonyms
AMHT | 4-Amino-5-hydrazino-1, 2, 4-triazole-3-thiol | 4-Amino-3-hydrazino-5-mercapto-1, 2, 4-triazole | Purpald | 4-Amino-3-hydrazino-1, 2, 4-triazol-5-thiol
Specifications & Purity
≥97%
Storage
Protected from light, Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesC1(=S)NN=C(N1N)NN
IUPAC Name4-amino-3-hydrazinyl-1H-1,2,4-triazole-5-thione
InChIKeyRDIMQHBOTMWMJA-UHFFFAOYSA-N
INCHI1S/C2H6N6S/c3-5-1-6-7-2(9)8(1)4/h3-4H2,(H,5,6)(H,7,9)
Isomeric SMILES C1(=S)NN=C(N1N)NN
WGK Germany 3
UN Number 1325
Molecular Weight 146.17
Beilstein 134867
Reaxy-Rn 144338
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=144338&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
SubclassTriazoles
Intermediate Tree Nodes Not available
Direct ParentTriazoles
Alternative Parents Triazolines  Heteroaromatic compounds  Azacyclic compounds  Organosulfur compounds  Organopnictogen compounds  Hydrocarbon derivatives  Hydrazines and derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Triazoline - Heteroaromatic compound - 1,2,4-triazole - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Hydrazine derivative - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as triazoles. These are compounds containing a five-member aromatic ring of two carbon atoms and three nitrogen atoms.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

5 results found

Lot NumberCertificate TypeDateItem
D2615009Certificate of AnalysisAug 20, 2025 A778203
I2522208Certificate of AnalysisAug 20, 2025 A778203
I2522215Certificate of AnalysisAug 20, 2025 A778203
I2522216Certificate of AnalysisAug 20, 2025 A778203
I2522220Certificate of AnalysisAug 20, 2025 A778203
Chemical and Physical Properties
SolubilitySoluble in Dimethyl sulfoxide. (DMSO)
SensitivityMoisture sensitive,light sensitive
Melt Point(°C)220-240℃
Molecular Weight146.180 g/mol
XLogP3-1.100
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass146.037 Da
Monoisotopic Mass146.037 Da
Topological Polar Surface Area124.000 Ų
Heavy Atom Count9
Formal Charge0
Complexity162.000
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
Citations of This Product
References
1. Dan Huo, Xipeng Zhang, Jiaxin Wei, Jinhua Wang, Qiang Zhang, Qiulin Yang, Hongxiang Zhu, Fengshan Zhang, Guigan Fang, Ting Wu.  (2023)  Preparation and characterization of cellulose nanofibril/chitosan aerogels with high-adsorbability and sensitive indication for indoor free formaldehyde.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:38143065] [10.1016/j.ijbiomac.2023.128891]
2. Yang Xiaozheng, Liu Yusong, Huang Jing, Tao Ye, Wang Yifeng, Shen Renfang, Zhu Xiaofang.  (2023)  NaCl Facilitates Cell Wall Phosphorus Reutilization in Abscisic Acid Dependent Manner in Phosphorus Deficient Rice Root.  Rice Science,      [PMID:] [10.1016/j.rsci.2023.01.006]
3. Qi Nie, Jingjing Deng, Bing Xie, Guoyue Shi, Tianshu Zhou.  (2021)  A dual-channel colorimetric and fluorescent sensor for the rapid and ultrasensitive detection of kanamycin based on gold nanoparticles-copper nanoclusters.  Analytical Methods,  13  (48): (5813-5820).  [PMID:34852031] [10.1039/D1AY01460A]
4. Kun Ge, Lunzhao Yi, Qiyue Wu, Yonghui Li, Hanqiang Zhang, Ying Gu.  (2021)  Detection of Formaldehyde by Surface-Enhanced Raman Spectroscopy Based on PbBiO2Br/Au4Ag4 Nanospheres.  ACS Applied Nano Materials,      [PMID:] [10.1021/acsanm.1c01710]
5. Lu Feng, Tianyu Zeng, Haobo Hou.  (2021)  Post-functionalized metal−organic framework for effective and selective removal of Hg(II) in aqueous media.  MICROPOROUS AND MESOPOROUS MATERIALS,      [PMID:] [10.1016/j.micromeso.2021.111479]
6. Biao Zeng, Wei Wang, Sijin He, Guo Lin, Wenjia Du, Jun Chang, Zhao Ding.  (2021)  Facile synthesis of zinc-based organic framework for aqueous Hg (II) removal: Adsorption performance and mechanism.  Nano Materials Science,      [PMID:] [10.1016/j.nanoms.2021.06.005]
7. Guo Lei, Wu Min, Leng Senlin, Qiang Yujie, Zheng Xingwen.  (2018)  Synergistic Effect of Purpald with Tartaric Acid on the Corrosion Inhibition of Mild Steel: from Electrochemical to Theoretical Insights.  Protection of Metals and Physical Chemistry of Surfaces,  54  (5): (917-925).  [PMID:] [10.1134/S2070205118050076]
8. Zhang Dandan, Li Jing, Su Zhen, Hu Sanyuan, Li Heping, Yan Youwei.  (2018)  Electrospun polyporous VN nanofibers for symmetric all-solid-state supercapacitors.  Journal of Advanced Ceramics,  (3): (246-255).  [PMID:] [10.1007/s40145-018-0276-2]
9. Ren-Jie Li, Jian-He Xu, Yue-Cai Yin, Nicolas Wirth, Jiang-Meng Ren, Bu-Bing Zeng, Hui-Lei Yu.  (2016)  Rapid probing of the reactivity of P450 monooxygenases from the CYP116B subfamily using a substrate-based method.  NEW JOURNAL OF CHEMISTRY,  40  (10): (8928-8934).  [PMID:] [10.1039/C6NJ00809G]
10. Feng Yu, Yu-Long Jia, Hui-Fang Wang, Jing Zheng, Yi Cui, Xin-Yu Fang, Lin-Min Zhang, Qing-Xi Chen.  (2015)  Synthesis of Triazole Schiff’s Base Derivatives and Their Inhibitory Kinetics on Tyrosinase Activity.  PLoS One,  10  (9): (e0138578).  [PMID:26422245] [10.1371/journal.pone.0138578]
11. Wang Ai-Jun, Guo Han, Zhang Ming, Zhou Dan-Ling, Wang Rui-Zhi, Feng Jiu-Ju.  (2013)  Sensitive and selective colorimetric detection of cadmium(II) using gold nanoparticles modified with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole.  MICROCHIMICA ACTA,  180  (11): (1051-1057).  [PMID:] [10.1007/s00604-013-1030-7]
12. Xi Zhu, Yong Guo, Baozhan Zheng.  (2024)  Preparation of 4-Amino-3-hydrazino-1,2,4-triazol-5-thiol-Modified Graphene Oxide and Its Greatly Enhanced Selective Adsorption of Gallium in Aqueous Solution.  MOLECULES,  29  (12): (2778).  [PMID:38930842] [10.3390/molecules29122778]
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