Pyrogallol Red - ≥95% , CAS No.32638-88-3

CAS: 32638-88-3 Cat. No.: P169580 Peso molecular: 400.36 Beilstein Registry Number: 19407 Número EC: 251-134-3 PubChem CID: 94437
Disponible para pedir
GRADE & PURITY ≥95%
Synonyms
3',4',5',6'-tetrahydroxyspiro[2,1-benzoxathiole-3,9'-xanthene]-1,1-dione | 3',4',5',6'-Tetrahydroxyspiro[benzo[c][1,2]oxathiole-3,9'-xanthene]1,1-dioxide | EINECS 251-134-3 | PYROGALLOLRED | Pyrogallolsulfonephthalein | 1,1-dioxospiro[2,1lambda6-benzoxath
Storage
Room temperature,Argon charged
Shipped In
Normal
Size
USA
Alemania (EU)*
Price
Qty
250mg
P169580-250mg
7 Disponible
32,90US$
1g
P169580-1g
Fabricado bajo pedido · 8–12 semanas
82,90US$
5g
P169580-5g
1 Disponible
189,90US$
Enter a quantity for the sizes you want to add.
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged 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.

📚

Literature proof

Cited in 9 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Sinónimos
3', 4', 5', 6'-tetrahydroxyspiro[2, 1-benzoxathiole-3, 9'-xanthene]-1, 1-dione | 3', 4', 5', 6'-Tetrahydroxyspiro[benzo[c][1, 2]oxathiole-3, 9'-xanthene]1, 1-dioxide | EINECS 251-134-3 | PYROGALLOLRED | Pyrogallolsulfonephthalein | 1, 1-dioxospiro[2, 1lambda6-benzoxath
Especificaciones y pureza
≥95%
Condiciones de almacenamiento de almacenamiento
Room temperature, Argon charged
Enviado en
Normal
Pureza
≥95%
Nombres e identificadores
Pubchem Sid504756220
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504756220
Sonrisas canónicasC1=CC=C2C(=C1)C3(C4=C(C(=C(C=C4)O)O)OC5=C3C=CC(=C5O)O)OS2(=O)=O
IUPAC Name1,1-dioxospiro[2,1λ6-benzoxathiole-3,9'-xanthene]-3',4',5',6'-tetrol
InChIKeyKUQNCHZOCSYKOR-UHFFFAOYSA-N
INCHI1S/C19H12O8S/c20-12-7-5-10-17(15(12)22)26-18-11(6-8-13(21)16(18)23)19(10)9-3-1-2-4-14(9)28(24,25)27-19/h1-8,20-23H
Isómeros SMILES C1=CC=C2C(=C1)C3(C4=C(C(=C(C=C4)O)O)OC5=C3C=CC(=C5O)O)OS2(=O)=O
PubChem CID 94437
Peso molecular 400.36
Beilstein 19407
Reaxy-Rn 363738

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
ClaseBenzopyrans
Subclass1-benzopyrans
Intermediate Tree Nodes Dibenzopyrans
Direct ParentXanthenes
Alternative Parents Diarylethers  Phthalides  Benzofuranones  Benzoxathioles  1-hydroxy-4-unsubstituted benzenoids  1-hydroxy-2-unsubstituted benzenoids  Organosulfonic acid esters  Polyols  Oxacyclic compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Xanthene - Diaryl ether - Benzofuranone - Phthalide - Benzoxathiole - 1-hydroxy-4-unsubstituted benzenoid - 1-hydroxy-2-unsubstituted benzenoid - Benzenoid - Organosulfonic acid ester - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Ether - Oxacycle - Polyol - Hydrocarbon derivative - Organooxygen compound - Organic oxygen compound - Organic oxide - Aromatic heteropolycyclic compound
DescripciónThis compound belongs to the class of organic compounds known as xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene rings joined to each other by a pyran ring.
External Descriptors Not available
Estructura 3D
Modelo de Estructura Química Interactiva





Mecanismos de acción
Certificados (CoA, COO, BSE/TSE y tabla de análisis)
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.

6 results found

Lot NumberCertificate TypeFechaArticulo
A2606019Certificate of AnalysisJan 12, 2026 P169580
K2527193Certificate of AnalysisDec 09, 2025 P169580
H2203564Certificate of AnalysisMay 07, 2025 P169580
H2203565Certificate of AnalysisMay 07, 2025 P169580
J2113236Certificate of AnalysisJul 10, 2024 P169580
J2113256Certificate of AnalysisJul 10, 2024 P169580
Propiedades químicas y físicas
SolubilidadSoluble in water, ammonium hydroxide (10 mg/ml), and ethanol.
SensibilidadMoisture sensitive.
Punto de fusión (°C)≥300 °C
Peso molecular400.400 g/mol
XLogP32.100
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count8
Rotatable Bond Count0
Exact Mass400.025 Da
Monoisotopic Mass400.025 Da
Topological Polar Surface Area142.000 Ų
Heavy Atom Count28
Formal Charge0
Complexity690.000
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
Referencias
1. Xin Wang, Lei Zhao, Jinshuang Hu, Hua Wei, Xiaoyang Liu, Enshou Li, Shenghong Yang.  (2022)  Rational design of novel carbon-oxygen quantum dots for ratiometrically mapping pH and reactive oxygen species scavenging.  CARBON,      [PMID:] [10.1016/j.carbon.2022.01.006]
2. Yanmei Zhu, Fushuang Xiang, Yuanyuan Su, Xue Jiang, Yipeng Cang, Wanjun Long, Wei Lan, Gaoqiong Deng, Hengye Chen, Yuanbin She, Haiyan Fu.  (2023)  Authenticity identification of high – Temperature Daqu Baijiu through multi-channel visual array sensor of organic dyes combined with smart phone App.  FOOD CHEMISTRY,      [PMID:37979267] [10.1016/j.foodchem.2023.137980]
3. Weimin Qi, Tianjiao Zhao, Min Liu, Xiaojing Shi, Yongqi Yang, Yunying Huang, Niansheng Li, Kelong Ai, Qiong Huang.  (2025)  Engineered tantalum sulfide nanosheets for effective acute liver injury treatment by regulating oxidative stress and inflammation.  JOURNAL OF COLLOID AND INTERFACE SCIENCE,      [PMID:40250115] [10.1016/j.jcis.2025.137596]
4. Mingyue Yan, Kehao Hou, Jinpeng Zhao, Shuangshan Li, Xiaolin Wu, Shichao Bi, Jing Yu, Tianrui Wang, Yingze Zhang.  (2025)  Ultra-small Iron-based Nanoparticles Mitigate Rheumatoid Arthritis Inflammation via Macrophage Repolarization and SLC7A11/GPX4-Mediated Ferroptosis Inhibition.  Materials Today Bio,      [PMID:41322148] [10.1016/j.mtbio.2025.102551]
5. Yuanqing Niu, Hengrui Chang, Jiaxin Xu.  (2025)  Regenerative treatment of zinc-based nanoenzyme incorporated injectable hydrogel with mesenchymal stem cells alleviates spinal cord injury.  JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION,      [PMID:41167984] [10.1080/09205063.2025.2574942]
6. Xiumei Geng, Ruiying Xie, Xinxin Sun, Xiang Zhang, Xuerui Wang, Roberto Castro Muñoz, Meixia Shan, Yatao Zhang.  (2025)  Influence of Filler Microstructure on Propylene/Propane Separation in Calixarene-based Mixed Matrix Membranes.  Advanced Membranes,      [PMID:] [10.1016/j.advmem.2025.100192]
7. Kui Wang, Lu Shen, Xiang Ji, Jiale Gong, Chenchen Cui, Jiahong Xie, Liang Hong.  (2025)  Pyrogallol adhesion and mineralized bionic hybrid layer decorating UHMWPE fiber for enhancing the interfacial and mechanical properties.  COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING,      [PMID:] [10.1016/j.compositesa.2025.109528]
8. Lijie Wang, Honggang Sun, Jianfeng Zhang, Linshui Dong.  (2025)  Productivity Dynamics in Chinese Fir Plantations: The Driving Role of Plant–Soil–Microbe Interactions in Northern Subtropical China.  Forests,  16  (12): (1854).  [PMID:] [10.3390/f16121854]
9. Wenxin Hua, Jingzhong Kuang, Zheyu Huang, Lei Wang, Man Chen, Chenyang Zhang, Mingming Yu, Lingguo Meng.  (2025)  Selective separation mechanism of a metal inhibitor complex for scheelite and calcite: The structural stability of Fe3+-pyrogallol complex.  MINERALS ENGINEERING,      [PMID:] [10.1016/j.mineng.2025.109913]
10. Shiwei Guo, Liang Gou, Yuhan Wang, Haoran Xiong, Xiaoying Ma, Ming Li, Chungang Yuan.  (2026)  Enhancing nanofiltration performance via a transient interlayer during interfacial polymerization: improved rejection of representative antibiotics.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2026.139515]
11. Long Li, Yuntong Li, Fei Jing, Qianqian Shang, Zheng Pan, Meng Zhang, Caiying Bo, Yonghong Zhou, Xiaohui Yang, Xuejun Pan.  (2026)  One-Pot Depolymerization, Demethylation, and Phenolation of Lignin for Bioactive Polyphenol Production.  ChemSusChem,  19  (13): (e70855).  [PMID:42406572] [10.1002/cssc.70855]
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