5,5-Dimethylhydantoin(DMH) - ≥98% , CAS No.77-71-4

CAS: 77-71-4 Cat. No.: D137034 Molecular Weight: 128.13 Beilstein Registry Number: 24289 EC Number: 201-051-3
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
5,5-Dimethyl hydantoin | 5,5-dimethyl-imidazolidine-2,4-dione | 5,5-dimethylimidazolidine-2,4-dione | AKOS000120928 | Q-200523 | 34032MQ9RO | 5,5-Dimethyl-imidazolidin-2,4-dion | A839172 | Dantoin DMH | EINECS 201-051-3 | 5-24-05-00348 (Beilstein Handbook
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
25g
D137034-25g
3
$9.90
100g
D137034-100g
4

$14.90

$23.90
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500g
D137034-500g
1
$41.90
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Why this grade

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

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Storage & shipping

Room temperature Ships Normal 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 19 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Reactant for synthesis of:N-chloroheterocyclic antimicrobials;β-Amino alcohols as inhibitors of antitubercular target N-acetyltransferase;Second-generation selective inhibitors of hepatitis C virus NS3 serine protease;Rechargeable biocidal cellulose;N-chlorohydantoins;Reactant for asymmetric chlorolactonization reactions

Specifications

Synonyms
5, 5-Dimethyl hydantoin | 5, 5-dimethyl-imidazolidine-2, 4-dione | 5, 5-dimethylimidazolidine-2, 4-dione | AKOS000120928 | Q-200523 | 34032MQ9RO | 5, 5-Dimethyl-imidazolidin-2, 4-dion | A839172 | Dantoin DMH | EINECS 201-051-3 | 5-24-05-00348 (Beilstein Handbook
Specifications & Purity
≥98%
Storage
Room temperature
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid504751103
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504751103
Canonical SmilesCC1(C(=O)NC(=O)N1)C
IUPAC Name5,5-dimethylimidazolidine-2,4-dione
InChIKeyYIROYDNZEPTFOL-UHFFFAOYSA-N
INCHI1S/C5H8N2O2/c1-5(2)3(8)6-4(9)7-5/h1-2H3,(H2,6,7,8,9)
Isomeric SMILES CC1(C(=O)NC(=O)N1)C
WGK Germany 3
RTECS MU0977000
Molecular Weight 128.13
Beilstein 24289
Reaxy-Rn 2827
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2827&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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassAzolidines
SubclassImidazolidines
Intermediate Tree Nodes Imidazolidinones - Imidazolidinediones
Direct ParentHydantoins
Alternative Parents Alpha amino acids and derivatives  5-monosubstituted hydantoins  N-acyl ureas  Dicarboximides  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Hydantoin - Alpha-amino acid or derivatives - 5-monosubstituted hydantoin - N-acyl urea - Ureide - Dicarboximide - Carbonic acid derivative - Urea - Carboxylic acid derivative - Azacycle - Organonitrogen compound - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Carbonyl group - Organooxygen compound - Organic nitrogen compound - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as hydantoins. These are heterocyclic compounds containing an imidazolidine substituted by ketone group at positions 2 and 4.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

25 results found

Lot NumberCertificate TypeDateItem
F2615358Certificate of AnalysisJun 05, 2026 D137034
F2615359Certificate of AnalysisJun 05, 2026 D137034
F2615362Certificate of AnalysisJun 05, 2026 D137034
F2615364Certificate of AnalysisJun 05, 2026 D137034
I2209157Certificate of AnalysisMar 11, 2026 D137034
I2209156Certificate of AnalysisMar 11, 2026 D137034
I2209155Certificate of AnalysisMar 11, 2026 D137034
D2616089Certificate of AnalysisNov 12, 2025 D137034
L2501312Certificate of AnalysisNov 12, 2025 D137034
L2501313Certificate of AnalysisNov 12, 2025 D137034
L2501314Certificate of AnalysisNov 12, 2025 D137034
I1807101Certificate of AnalysisNov 06, 2025 D137034
L2116155Certificate of AnalysisJul 15, 2025 D137034
L2116116Certificate of AnalysisJul 15, 2025 D137034
L2116115Certificate of AnalysisJul 15, 2025 D137034
L2116114Certificate of AnalysisJul 15, 2025 D137034
F2325386Certificate of AnalysisApr 09, 2025 D137034
F2325382Certificate of AnalysisApr 08, 2025 D137034
J2425469Certificate of AnalysisJul 29, 2024 D137034
J2425468Certificate of AnalysisJul 29, 2024 D137034
J2425467Certificate of AnalysisJul 29, 2024 D137034
K2506352Certificate of AnalysisJul 15, 2024 D137034
K2506342Certificate of AnalysisJul 15, 2024 D137034
I2209158Certificate of AnalysisJun 15, 2024 D137034
G2123121Certificate of AnalysisMay 10, 2023 D137034

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Chemical and Physical Properties
Flash Point(°F)193℃
Flash Point(°C)193℃
Melt Point(°C)174-178℃
Molecular Weight128.130 g/mol
XLogP3-0.300
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass128.059 Da
Monoisotopic Mass128.059 Da
Topological Polar Surface Area58.200 Ų
Heavy Atom Count9
Formal Charge0
Complexity174.000
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. Guangxuan Yang, Jian Liu, Yi Zhang, Jinfeng Yuan, Mingwang Pan, Zhicheng Pan.  (2023)  A Multifunctional Antibacterial Hydrogel with Injectable, Antifouling, and Conductive Properties.  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.3c00577]
2. Lei Jin, Zhi-Hao Liang, Jia-Qiang Yang, An-Ni Zheng, Zhao-Yun Wang, Fang-Zu Yang, De-Yin Wu, Zhong-Qun Tian, Dongping Zhan.  (2022)  Insights into the DMH tautomeric structures and its effects on the electro-reduction of Au(DMH)4− coordination ions.  ELECTROCHIMICA ACTA,      [PMID:] [10.1016/j.electacta.2022.141494]
3. Zongmin Ma, Zishuo Yan, Xia Yin, Yang Si, Jianyong Yu, Bin Ding.  (2021)  Antibacterial and antiviral nanofibrous membranes with renewable oxidative function for high-efficiency and super-throughput water disinfection.  COMPOSITES COMMUNICATIONS,      [PMID:] [10.1016/j.coco.2021.100875]
4. Jianwu Dai, Zishuo Yan, Wenling Jiao, Xia Yin, Yang Si, Jianyong Yu, Bin Ding.  (2021)  Amide-halamine/silica composite nanofibrous membranes with rechargeable chlorination function for mercaptan degradation.  COMPOSITES COMMUNICATIONS,      [PMID:] [10.1016/j.coco.2021.100729]
5. Congcong Tian, Fan Wu, Wenling Jiao, Xiaoyan Liu, Xia Yin, Yang Si, Jianyong Yu, Bin Ding.  (2021)  Antibacterial and antiviral N-halamine nanofibrous membranes with nanonet structure for bioprotective applications.  COMPOSITES COMMUNICATIONS,      [PMID:] [10.1016/j.coco.2021.100668]
6. Danxia Chai, Wenxin Liu, Xiufeng Hao, Heyuan Wang, Haixiao Wang, Yujiao Hao, Yue Gao, Huihui Qu, Lifang Wang, Alideertu Dong, Ge Gao.  (2020)  Mussel-inspired synthesis of magnetic N-Halamine nanoparticles for antibacterial recycling.  Colloid and Interface Science Communications,      [PMID:] [10.1016/j.colcom.2020.100320]
7. Chongyi Zhu, Dan Chang, Xiao Wang, Danxia Chai, Lili Chen, Alideertu Dong, Ge Gao.  (2019)  Novel antibacterial fibers of amphiphilic N-halamine polymer prepared by electrospinning.  POLYMERS FOR ADVANCED TECHNOLOGIES,  30  (6): (1386-1393).  [PMID:] [10.1002/pat.4571]
8. Dan Chang, Zhiying li, Xiao Wang, Chongyi Zhu, Alideertu Dong, Ge Gao.  (2018)  N-Halamine polymer from bipolymer to amphiphilic terpolymer with enhancement in antibacterial activity.  COLLOIDS AND SURFACES B-BIOINTERFACES,      [PMID:29366983] [10.1016/j.colsurfb.2018.01.013]
9. Xiaolin Zhang, Mengfei Wu, Hao Dong, Hongchao Li, Bingcai Pan.  (2017)  Simultaneous Oxidation and Sequestration of As(III) from Water by Using Redox Polymer-Based Fe(III) Oxide Nanocomposite.  ENVIRONMENTAL SCIENCE & TECHNOLOGY,      [PMID:28499085] [10.1021/acs.est.7b00724]
10. Han Wang, Zuo-Ming Wang, Xi Yan, Jun Chen, Wan-Zhong Lang, Ya-Jun Guo.  (2017)  Novel organic-inorganic hybrid polyvinylidene fluoride ultrafiltration membranes with antifouling and antibacterial properties by embedding N-halamine functionalized silica nanospheres.  JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,      [PMID:] [10.1016/j.jiec.2017.03.059]
11. Yamei Zhang, Ruilin Luo, Xifeng Tian.  (2025)  A Phosphorus–Nitrogen–Boron Cooperative Flame Retardant and Antibacterial Reagent for Cotton Fabric.  ChemistrySelect,  10  (8): (e202406055).  [PMID:] [10.1002/slct.202406055]
12. Yingfeng Wang, Kaizhun Li, Wenjing Xue, Huang Hu, Ming Huang, Maoli Yin.  (2024)  Preparation of N-halamine-based mesoporous composites for decontamination of formaldehyde and simultaneous deactivation of bacteria.  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,      [PMID:] [10.1016/j.colsurfa.2024.134664]
13. Xinrou Yi, Hui Zhao, Yuanfeng Wei, Yuxin Li, Ting wang, Zhaoshuang Li, Chuntao Kuang, Kai Yin, Chengbin Liu.  (2024)  Sustainable chloramine-functionalized iron hydroxide nanofiber membrane for arsenic(Ⅲ) removal via oxidation-adsorption mechanism.  CHEMOSPHERE,      [PMID:39577806] [10.1016/j.chemosphere.2024.143787]
14. Wenju Zhu, Shuang Xu, Xiaokang Yang, Kai Song, Shuixia Liu, Shuolong Wang, Wei Peng, Zhao Dai, Chunlei Jiang.  (2025)  Synergistic effect of the Phytic acid-halamine as a novel durability, antibacterial and flame retardant system for cotton fibers.  SCIENCE OF THE TOTAL ENVIRONMENT,      [PMID:40086351] [10.1016/j.scitotenv.2025.179095]
15. Linghui Meng, Jie Jiang, Xuesong Peng, Lin Zhu, Ruopeng Li, Yaqiang Li, Maozhong An.  (2025)  Theoretical and Experimental Study of Functional Additives in Au(I)-DMH Cyanide-Free Gold Electroplating System.  LANGMUIR,      [PMID:40721384] [10.1021/acs.langmuir.5c02124]
16. Yan Zhao, Bolei Wei, Mi Wu, Huiliang Zhang, Jinrong Yao, Xin Chen, Zhengzhong Shao.  (2019)  Preparation and characterization of antibacterial poly(lactic acid) nanocomposites with N-halamine modified silica.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:31751749] [10.1016/j.ijbiomac.2019.11.125]
17. Fei Wang, Jianwu Dai, Liqian Huang, Yang Si, Jianyong Yu, Bin Ding.  (2020)  Biomimetic and Superelastic Silica Nanofibrous Aerogels with Rechargeable Bactericidal Function for Antifouling Water Disinfection.  ACS Nano,      [PMID:32644778] [10.1021/acsnano.0c03793]
18. Yuwei Wu, Shumin Zhu, Yangtao Wu, Lingjun Bu, Shiqing Zhou, Naiyun Gao, Wenhai Chu.  (2026)  Amide heterocyclic disinfection byproducts with overlooked disinfectant capacity during chlorination.  WATER RESEARCH,      [PMID:41633113] [10.1016/j.watres.2026.125459]
19. Zhenying Li, Yanze Yang, Xu Chen, Yulu Hu, Xia Sun, Jiliang Xie, Tao Yang.  (2026)  Fabrication of TBO-PSPH/MXene composite membrane for high-efficiency Rhodamine B separation.  Journal of the Taiwan Institute of Chemical Engineers,      [PMID:] [10.1016/j.jtice.2026.106650]
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