Cresol red - Ph.Eur., indicator , CAS No.1733-12-6

CAS: 1733-12-6 Cat. No.: C432222 Peso molecular: 382.43 Beilstein Registry Number: 343399 Número EC: 217-064-2
Disponible para pedir
GRADE & PURITY Ph.Eur. ? European Pharmacopoeia grade — conforms to Ph.Eur. monographs across EU member states. Use for pharmaceutical work needing European compendial compliance. Indicator ? Indicator grade — characterized dye giving a defined color change at a known transition. Use to signal pH or titration endpoints visually.
Synonyms
AKOS000813825 | NSC7224 | NSC-7224 | Cresol red indicator | D89243 | BS-43766 | CresolRed | FT-0640840 | CRESOL RED [MI] | Cresol red, indicator grade, Dye content 95 % | 3,3-bis(4-hydroxy-5-methylphenyl)-2,1lambda(6)-benzoxathiole-1,1(3H)-dione | 4,4'-(1
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Estado
Price
Qty
5g
C432222-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

244,90US$

286,90US$
Guardar 42,00 US$ (14.64%)
25g
C432222-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

735,90US$

858,90US$
Guardar 123,00 US$ (14.32%)
Enter a quantity for the sizes you want to add.
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Why this grade

Ph.Eur., indicator Indicator,Ph.Eur. 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 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Sinónimos
AKOS000813825 | NSC7224 | NSC-7224 | Cresol red indicator | D89243 | BS-43766 | CresolRed | FT-0640840 | CRESOL RED [MI] | Cresol red, indicator grade, Dye content 95 % | 3, 3-bis(4-hydroxy-5-methylphenyl)-2, 1lambda(6)-benzoxathiole-1, 1(3H)-dione | 4, 4'-(1
Especificaciones y pureza
Ph.Eur., indicator
Condiciones de almacenamiento de almacenamiento
Room temperature
Enviado en
Normal
Grado
Indicator, Ph.Eur.
Nombres e identificadores
Sonrisas canónicasCC1=C(C=CC(=C1)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4)O)C)O
IUPAC Name4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]-2-methylphenol
InChIKeyOBRMNDMBJQTZHV-UHFFFAOYSA-N
INCHI1S/C21H18O5S/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3
Isómeros SMILES CC1=C(C=CC(=C1)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4)O)C)O
WGK Alemania 3
Peso molecular 382.43
Beilstein 343399
Reaxy-Rn 343399
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=343399&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
ClaseBenzofurans
SubclassBenzofuranones
Intermediate Tree Nodes Not available
Direct ParentBenzofuranones
Alternative Parents Phthalides  Benzoxathioles  Ortho cresols  Toluenes  1-hydroxy-2-unsubstituted benzenoids  Organosulfonic acid esters  Oxacyclic compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Benzofuranone - Phthalide - Benzoxathiole - O-cresol - 1-hydroxy-2-unsubstituted benzenoid - Toluene - Phenol - Monocyclic benzene moiety - Benzenoid - Organosulfonic acid ester - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Oxacycle - Organooxygen compound - Hydrocarbon derivative - Organic oxide - Organic oxygen compound - Aromatic heteropolycyclic compound
DescripciónThis compound belongs to the class of organic compounds known as benzofuranones. These are organic compounds containing a benzene ring fused to a furanone.
External Descriptors polyphenol - arenesulfonate ester - 2,1-benzoxathiole - sultone
Estructura 3D
Modelo de Estructura Química Interactiva





Certificados (CoA, COO, BSE/TSE y tabla de análisis)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Propiedades químicas y físicas
Punto de fusión (°C)290 °C
Peso molecular382.400 g/mol
XLogP33.700
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass382.087 Da
Monoisotopic Mass382.087 Da
Topological Polar Surface Area92.200 Ų
Heavy Atom Count27
Formal Charge0
Complexity615.000
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
Preguntas frecuentes y artículos
Citations of This Product
Referencias
1. Limei Tian, Haixu Dou, Yanlong Shao, Yaozhen Yi, Xue Fu, Jie Zhao, Yong Fan, Weihua Ming, Luquan Ren.  (2022)  Magnetically controlled super-wetting surface switching between ultra-low and ultra-high droplet adhesion.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2022.141093]
2. Xing Xing, Mi Wang, Hong Meng.  (2022)  Color Palette Tactic for Multicolor Electrochromics Enabled by Electrolyte Thermochromic Engineering.  Advanced Optical Materials,  10  (22): (2200941).  [PMID:] [10.1002/adom.202200941]
3. Zhongwei Guo, Kaifei Zhang, Hui Guan, Meihong Liu, Sanchuan Yu, Congjie Gao.  (2021)  Improved separation efficiency of polyamide-based composite nanofiltration membrane by surface modification using 3-aminopropyltriethoxysilane.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2021.119142]
4. Yang Jin, Cao Yan, Zhang Naidong.  (2020)  Color-mixing effects of photosensitive organic dyes initiated by superoxide anion radicals under visible-light irradiation.  Environmental Chemistry Letters,  18  (6): (2127-2132).  [PMID:] [10.1007/s10311-020-01043-4]
5. Duanyang Wu, Junxue Li, Jing Xu, Wei Cheng.  (2024)  Freezing-enhanced chlorination of organic pollutants for water treatment.  RSC Advances,  14  (17): (12218-12224).  [PMID:38628482] [10.1039/D4RA00081A]
6. Kai Xu, Xuefeng Zhang, Ming Zhang, Lanhe Zhang, Zicheng Chen.  (2025)  Fabrication of pH-sensitive cellulose colorimetric papers for rapid detection of water content in transformer oil.  INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,      [PMID:40796044] [10.1016/j.ijbiomac.2025.146598]
7. Jianye Ji, Xin Ge, Xiaoyan Pang, Ruoling Liu, Shuyi Wen, Jiaqi Sun, Weijie Liang, Jianfang Ge, Xunjun Chen.  (2019)  Synthesis and Characterization of Room Temperature Vulcanized Silicone Rubber Using Methoxyl-Capped MQ Silicone Resin as Self-Reinforced Cross-Linker.  Polymers,  11  (7): (1142).  [PMID:31277337] [10.3390/polym11071142]
8. Wen Sun, Hui Li, Han Wang, Shan Xiao, Jihui Wang, Liang Feng.  (2015)  Sensitivity enhancement of pH indicator and its application in the evaluation of fish freshness.  TALANTA,      [PMID:26078139] [10.1016/j.talanta.2015.05.021]
9. Nan Wu, Lili Ren, Wei Song, Jian Xu, Li Zhang, Shuai Wang, Zeyu Wang, Qiancheng He, Qingzhu Zhang.  (2025)  Preparation and characterization of pH-responsive films of cresol red/starch/carboxymethyl cellulose induced by boric acid.  INDUSTRIAL CROPS AND PRODUCTS,      [PMID:] [10.1016/j.indcrop.2025.122087]
10. Yucheng Liu, Hantao Du, Xu Huang, Mingming Yin, Hongtao Liu, Haoran Sun, Lizhang Wang.  (2025)  Sulfate ion-mediated electron transfer process on Ti/RuO2-MOx electrodes for ultra-low energy degradation of organic pollutants.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2025.136243]
11. Rongrong Dai, Bingyan Zhou, Jingwen Zeng, Pengle Qian, Yadong Sun, Yingtang Zhou, Zheng Guo.  (2025)  Boosting Catalytic Dye Degradation in Fe2O3 Nanozyme through Cu-Doping Mediated Phase Transformation.  Journal of Environmental Chemical Engineering,      [PMID:] [10.1016/j.jece.2025.120625]
12. Wang Shiyu, Zhou Ying, Zhao Wenchang, Li Yanhong, Tang Shuxian, Si Ting, Zhu Pingan.  (2025)  Spontaneous droplet transport on shape-evolving microfiber rails.  Nature Communications,  16  (1): (10894).  [PMID:41345385] [10.1038/s41467-025-65884-9]
13. Asmaa Gbiliy, Ibrahim Senosy, Marwa A.A. Saadan, Mahmoud Sayed, I.P.W.A.V. Kumara, Ge-Fei Hao, Man-Qun Wang.  (2026)  Highly sensitive colorimetric 3D covalent organic framework sensors with artificial intelligence analysis enabled early detection of plant diseases.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2026.175189]
14. Zhu Lang, Chen Na, Zou Rui, Ren Luyao, Xie Jia, Hao Zelin, Jiang Haoyang, Jia Hanzhong.  (2026)  Dissolved organic carbon decomposed or polymerized in ice depending on nitrate-mediated carbon-nitrogen coupling.  Communications Earth & Environment,      [PMID:] [10.1038/s43247-026-03482-3]
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