Phenylbutazone - Moligand™, ≥98%(HPLC) , Inhibitor of COX-1;Inhibitor of COX-2, CAS No.50-33-9, Inhibitor of COX-1;Inhibitor of COX-2

CAS: 50-33-9 Cat. No.: P129990 Molecular Weight: 308.37 Beilstein Registry Number: 24(5)5,400 EC Number: 200-029-0
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GRADE & PURITY Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%(HPLC)
Synonyms
Lingel | Butalidon | Butidiona | Diozol | Fenylbutazon | Tevcodyne | Artrizin | Buta phen | Fenibutol | Pyrabutol | Nadazone | Anerval | Butapirazol | Fenartil | Reupolar | Butazona | Butacompren | Butartrina | Praecirheumin | Alindor | Butagesic | Nadozo
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
5g
P129990-5g
≥10

$9.90

$14.90
Save $5.00 (33.56%)
25g
P129990-25g
4

$18.90

$28.90
Save $10.00 (34.60%)
100g
P129990-100g
5

$43.90

$65.90
Save $22.00 (33.38%)
500g
P129990-500g
1

$164.90

$247.90
Save $83.00 (33.48%)
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Why this grade

Moligand™, ≥98%(HPLC) Moligand™ 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 13 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Phenylbutazone is used as a non-steroidal anti-inflammatory agent for the treatment of chronic pain, including the symptoms of arthritis.
An inhibitor of Cox.

Specifications

Synonyms
Lingel | Butalidon | Butidiona | Diozol | Fenylbutazon | Tevcodyne | Artrizin | Buta phen | Fenibutol | Pyrabutol | Nadazone | Anerval | Butapirazol | Fenartil | Reupolar | Butazona | Butacompren | Butartrina | Praecirheumin | Alindor | Butagesic | Nadozo
Specifications & Purity
Moligand™, ≥98%(HPLC)
Biochemical and Physiological Mechanisms
Phenylbutazone is a compound of research interest as an anti-inflammatory and anti-proliferative agent. Several studies have investigated Phenylbutazone as an anti-inflammatory agent and its role in mediating prostaglandin synthesis. Phenylbutazone may be
Storage
Room temperature
Shipped In
Normal
Grade
Moligand™
Action Type
INHIBITOR
Mechanism of action
Inhibitor of COX-1;Inhibitor of COX-2
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥98%(HPLC)
Names and Identifiers
Pubchem Sid488179856
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488179856
Canonical SmilesCCCCC1C(=O)N(N(C1=O)C2=CC=CC=C2)C3=CC=CC=C3
IUPAC Name4-butyl-1,2-diphenylpyrazolidine-3,5-dione
InChIKeyVYMDGNCVAMGZFE-UHFFFAOYSA-N
INCHI1S/C19H20N2O2/c1-2-3-14-17-18(22)20(15-10-6-4-7-11-15)21(19(17)23)16-12-8-5-9-13-16/h4-13,17H,2-3,14H2,1H3
Isomeric SMILES CCCCC1C(=O)N(N(C1=O)C2=CC=CC=C2)C3=CC=CC=C3
WGK Germany 3
RTECS UQ8225000
UN Number 2811
Packing Group I
Molecular Weight 308.37
Beilstein 24(5)5,400
Reaxy-Rn 290080
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=290080&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
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentBenzene and substituted derivatives
Alternative Parents Pyrazolidinones  1,3-dicarbonyl compounds  Carboxylic acid hydrazides  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Monocyclic benzene moiety - Pyrazolidinone - 1,3-dicarbonyl compound - Pyrazolidine - Carboxylic acid hydrazide - Azacycle - Organoheterocyclic compound - Carboxylic acid derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organooxygen compound - Organonitrogen compound - Carbonyl group - Organic nitrogen compound - Hydrocarbon derivative - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene.
External Descriptors pyrazolidines
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
NAPRT Tchem Nicotinate phosphoribosyltransferase (2 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
PTGS1 Tclin Prostaglandin G/H synthase 1 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
PTGS2 Tclin Prostaglandin G/H synthase 2 (1 Activities)
Activity TypeActivity Value -log(M)Mechanism of ActionActivity ReferencePublications (PubMed IDs)
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.

12 results found

Lot NumberCertificate TypeDateItem
H2406058Certificate of AnalysisMay 20, 2026 P129990
G2403651Certificate of AnalysisApr 03, 2026 P129990
G2403652Certificate of AnalysisApr 03, 2026 P129990
L2304026Certificate of AnalysisSep 09, 2025 P129990
E2509354Certificate of AnalysisJul 19, 2024 P129990
E2509398Certificate of AnalysisJul 19, 2024 P129990
G2403650Certificate of AnalysisApr 13, 2024 P129990
K2126298Certificate of AnalysisSep 20, 2023 P129990
K1710032Certificate of AnalysisMay 10, 2023 P129990
B2315102Certificate of AnalysisFeb 24, 2023 P129990
F1509094Certificate of AnalysisJan 25, 2023 P129990
I2221047Certificate of AnalysisSep 26, 2022 P129990

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Chemical and Physical Properties
SolubilitySoluble in water (1 mg/ml at 25 °C), ethanol (62 mg/ml at 25 °C), methanol, DMSO (62 mg/ml at 25 °C), and DMF (25 mg/ml).
Melt Point(°C)106 °C
Molecular Weight308.400 g/mol
XLogP33.200
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count5
Exact Mass308.152 Da
Monoisotopic Mass308.152 Da
Topological Polar Surface Area40.600 Ų
Heavy Atom Count23
Formal Charge0
Complexity389.000
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. Wen Li, Yuzhu Fan, Chaoqun Yan, Yan Du, Tingting Liang, Chunqiang Wang, Liwei Wang, Lingling Han, Qingshan Li, Taigang Liang.  (2022)  Triptolide and methotrexate binding competitively to bovine serum albumin: A study of spectroscopic experiments, molecular docking, and molecular dynamic simulation.  JOURNAL OF MOLECULAR LIQUIDS,      [PMID:] [10.1016/j.molliq.2022.120300]
2. Fangwei Yang, Cheng Wang, Hang Yu, Yahui Guo, Yuliang Cheng, Weirong Yao, Yunfei Xie.  (2022)  Establishment of the thin-layer chromatography-surface-enhanced Raman spectroscopy and chemometrics method for simultaneous identification of eleven illegal drugs in anti-rheumatic health food.  Food Bioscience,      [PMID:] [10.1016/j.fbio.2022.101842]
3. Wencheng Zhong, Xiaojian Yan, Shaohua Qu, Li Shang.  (2022)  Site-specific fabrication of gold nanocluster-based fluorescence photoswitch enabled by the dual roles of albumin proteins.  Aggregate,  (1): (e245).  [PMID:] [10.1002/agt2.245]
4. Fang Huang, Fei Pan, Li Wang, Zhang Xiao, Jinzhao He, Mei Yan, Jia Wang, Weidong Qiu, Mingxue Liu, Haiqing Dong.  (2021)  The interaction between citronellol and bovine serum albumin: Spectroscopic, computational and thermal imaging studies.  JOURNAL OF MOLECULAR STRUCTURE,      [PMID:] [10.1016/j.molstruc.2021.131986]
5. Yang Shirui, Zhang Wenxiang, Liu Zheyi, Zhai Ziyang, Hou Xudong, Wang Ping, Ge Guangbo, Wang Fangjun.  (2021)  Lysine reactivity profiling reveals molecular insights into human serum albumin–small-molecule drug interactions.  ANALYTICAL AND BIOANALYTICAL CHEMISTRY,  413  (30): (7431-7440).  [PMID:34676431] [10.1007/s00216-021-03700-1]
6. Yue Wang, Wenchang Zhao, Ruixia Gao, Sameer Hussain, Yi Hao, Jiahao Tian, Shihui Chen, Yunhao Feng, Yubo Zhao, Yuyao Qu.  (2021)  Preparation of lightweight daisy-like magnetic molecularly imprinted polymers via etching synergized template immobilization for enhanced rapid detection of trace 17β-estradiol.  JOURNAL OF HAZARDOUS MATERIALS,      [PMID:34592596] [10.1016/j.jhazmat.2021.127216]
7. Tingting Guo, Xiaojuan Wang, Yang Shu, Jianhua Wang.  (2021)  Effects of alkyl side-chain length on binding with bovine serum albumin, cytotoxicity, and antibacterial properties of 1-alkyl-3-methylimidazolium dicyanamide ionic liquids.  JOURNAL OF MOLECULAR LIQUIDS,      [PMID:] [10.1016/j.molliq.2021.116835]
8. Hui Lv, Juanjuan Wang, Mingying Wang, Li Shen, Ling Xiao, Taijie Chen, Tingzhe Sun, Wenjuan Li, Liangliang Zhu, Xiaoke Zhang.  (2021)  Potent inhibition of tributyltin (TBT) and triphenyltin (TPT) against multiple UDP-glucuronosyltransferases (UGT): A new potential mechanism underlying endocrine disrupting actions.  FOOD AND CHEMICAL TOXICOLOGY,      [PMID:33549631] [10.1016/j.fct.2021.112039]
9. Xiangyu Cao, Zhijun Yang, Yonglin He, Ying Xia, Yin He, Jianli Liu.  (2019)  Multispectroscopic exploration and molecular docking analysis on interaction of eriocitrin with bovine serum albumin.  JOURNAL OF MOLECULAR RECOGNITION,  32  (7): (e2779).  [PMID:30701606] [10.1002/jmr.2779]
10. Miao Qin, Tianxiang Yin, Weiguo Shen.  (2016)  The Interaction Between Crystal Violet and Bovine Serum Albumin: Spectroscopic and Molecular Docking Investigations.  JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,      [PMID:] [10.1080/01932691.2015.1073597]
11. Miao Qin, Tianxiang Yin, Shuzhen Wang, Weiguo Shen.  (2015)  Spectroscopic Investigation on the Interactions between Cationic Surfactants and Bovine Serum Albumin.  JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,      [PMID:] [10.1080/01932691.2014.973031]
12. Ming Li, Hua Sun, Jin-Ling Song, Xing Sun, Wei Li.  (2025)  Identification of human UDP-glucuronosyltransferases involved in I3,II8-biapigenin glucuronidation in Vitro.  JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS,      [PMID:39923326] [10.1016/j.jpba.2025.116735]
13. Honglong Zhang, Zhenyu Shi, Jun Ma, Fuyi Cui, Jing Zhang, Timothy J. Strathmann.  (2022)  Abatement of Organic Contaminants by Mn(VII)/TEMPOs: Effects of TEMPOs Structure, Organic Contaminant Speciation, and Active Oxidizing Species.  ENVIRONMENTAL SCIENCE & TECHNOLOGY,      [PMID:35748905] [10.1021/acs.est.2c02098]
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