Tetrabromophenol blue - indicator , CAS No.4430-25-5

CAS: 4430-25-5 Cat. No.: T100508 Molecular Weight: 985.54 Beilstein Registry Number: 378438 EC Number: 224-622-9 PubChem CID: 78159
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GRADE & PURITY Indicator ? Indicator grade — characterized dye giving a defined color change at a known transition. Use to signal pH or titration endpoints visually.
Synonyms
NSC11236 | Phenol, 4,4'-(4,5,6,7-tetrabromo-1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo- | Q27288730 | o-Toluenesulfonic acid,4,5,6-tetrabromo-.alpha.,.alpha.-bis(3,5-dibromo-4-hydroxyphenyl)-.alpha.-hydroxy- | PHENOL, 4,4'-(4,5,6,7-TETRABRO
Storage
Room temperature,Desiccated,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
T100508-1g
3
$39.90
5g
T100508-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$151.90
Enter a quantity for the sizes you want to add.
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Why this grade

indicator Indicator for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Desiccated,Cool 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 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
NSC11236 | Phenol, 4, 4'-(4, 5, 6, 7-tetrabromo-1, 1-dioxido-3H-2, 1-benzoxathiol-3-ylidene)bis[2, 6-dibromo- | Q27288730 | o-Toluenesulfonic acid, 4, 5, 6-tetrabromo-.alpha., .alpha.-bis(3, 5-dibromo-4-hydroxyphenyl)-.alpha.-hydroxy- | PHENOL, 4, 4'-(4, 5, 6, 7-TETRABRO
Specifications & Purity
indicator
Storage
Room temperature, Desiccated, Cool
Shipped In
Normal
Grade
Indicator
Names and Identifiers
Pubchem Sid504755256
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504755256
Canonical SmilesC1=C(C=C(C(=C1Br)O)Br)C2(C3=C(C(=C(C(=C3Br)Br)Br)Br)S(=O)(=O)O2)C4=CC(=C(C(=C4)Br)O)Br
IUPAC Name2,6-dibromo-4-[4,5,6,7-tetrabromo-3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1λ6-benzoxathiol-3-yl]phenol
InChIKeyQPMIVFWZGPTDPN-UHFFFAOYSA-N
INCHI1S/C19H6Br8O5S/c20-7-1-5(2-8(21)16(7)28)19(6-3-9(22)17(29)10(23)4-6)11-12(24)13(25)14(26)15(27)18(11)33(30,31)32-19/h1-4,28-29H
Isomeric SMILES C1=C(C=C(C(=C1Br)O)Br)C2(C3=C(C(=C(C(=C3Br)Br)Br)Br)S(=O)(=O)O2)C4=CC(=C(C(=C4)Br)O)Br
WGK Germany 3
PubChem CID 78159
Molecular Weight 985.54
Beilstein 378438
Reaxy-Rn 378438

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
ClassBenzofurans
SubclassBenzofuranones
Intermediate Tree Nodes Not available
Direct ParentBenzofuranones
Alternative Parents Phthalides  Benzoxathioles  O-bromophenols  Bromobenzenes  Organosulfonic acid esters  Aryl bromides  Oxacyclic compounds  Organooxygen compounds  Organobromides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Benzofuranone - Phthalide - Benzoxathiole - 2-halophenol - 2-bromophenol - Bromobenzene - Phenol - Halobenzene - Aryl bromide - Aryl halide - Monocyclic benzene moiety - Benzenoid - Organosulfonic acid ester - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Oxacycle - Organooxygen compound - Organic oxygen compound - Hydrocarbon derivative - Organic oxide - Organobromide - Organohalogen compound - Aromatic heteropolycyclic compound
DescriptionThis 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 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.

9 results found

Lot NumberCertificate TypeDateItem
F2517752Certificate of AnalysisJun 19, 2025 T100508
K2119658Certificate of AnalysisAug 15, 2023 T100508
F2301498Certificate of AnalysisJun 09, 2023 T100508
F2301499Certificate of AnalysisJun 09, 2023 T100508
F2117231Certificate of AnalysisMar 09, 2023 T100508
B23181070Certificate of AnalysisMar 01, 2023 T100508
B2318913Certificate of AnalysisMar 01, 2023 T100508
G2221261Certificate of AnalysisJul 26, 2022 T100508
G2221266Certificate of AnalysisJul 26, 2022 T100508
Chemical and Physical Properties
Melt Point(°C)204°C
Molecular Weight985.500 g/mol
XLogP38.800
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass985.332 Da
Monoisotopic Mass977.34 Da
Topological Polar Surface Area92.200 Ų
Heavy Atom Count33
Formal Charge0
Complexity791.000
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. Nie Beixi, Zhao Shaoyu, Deng Muhan, Yu Peng, Yang Yi, Lei Weixin, Yin Lu.  (2021)  Single-Layered Paper-Based Microfluidic Devices Made by Paint-Spraying Technique with Great Barrier Resistance for Colorimetric Assays.  JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY,  32  (3): (599-608).  [PMID:] [10.21577/0103-5053.20200213]
2. Qian Liu, Penghui Ren, Xiaofei Wang, Yuanzuo Li, Yanhui Yang.  (2018)  Experimental and Theoretical Investigation of the Photoelectrical Properties of Tetrabromophenol Blue- and Bromoxylenol Blue-Based Solar Cells.  Journal of Nanomaterials,      [PMID:] [10.1155/2018/9720595]
3. Tingting Chen, Liyuan Zhang, Yizhen Chen, Renhui Qiu, Wendi Liu.  (2024)  Non-isothermal curing kinetics of soybean oil-based resins: Effect of initiator and reactive diluent.  PROGRESS IN ORGANIC COATINGS,      [PMID:] [10.1016/j.porgcoat.2023.108178]
4. Guangju Liu, Na Li, Xiang Gao.  (2025)  Novel sulfonylimide photo-acid generators for deep ultraviolet photoresist with improved acid diffusion inhibition performance through retarding the anion diffusion.  JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,      [PMID:] [10.1016/j.jphotochem.2025.116279]
5. Li WanYun, Shi ZhuanZhuan, Fang Can, Lu Yao, Yu Ling, Li Chang Ming.  (2017)  Integration of paper and micropipette tip to build a “sample-in, answer-out” point-of-care device.  Microfluidics and Nanofluidics,  21  (4): (1-8).  [PMID:] [10.1007/s10404-017-1901-z]
Solution Calculators
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