Bromoxylenol Blue , CAS No.40070-59-5

CAS: 40070-59-5 Cat. No.: B141320 Molecular Weight: 568.28 EC Number: 254-780-4 PubChem CID: 417069
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Synonyms
3',3''-Dibromo-p-xylenolsulfonephthalein | 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[3-bromo-2,5-dimethylphenol] S,S-dioxide
Storage
Room temperature
Shipped In
Normal
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1g
B141320-1g
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5g
B141320-5g
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25g
B141320-25g
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$735.90

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100g
B141320-100g
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Why this grade

for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Bromoxylenol blue is a pH indicator for pH ranges 6.0 - 7.6 with color changes from yellow to blue. Bromoxylenol blue shows a maximum absorption λ at 417 nm.

Specifications

Synonyms
3', 3''-Dibromo-p-xylenolsulfonephthalein | 4, 4'-(3H-2, 1-Benzoxathiol-3-ylidene)bis[3-bromo-2, 5-dimethylphenol] S, S-dioxide
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Isomeric SMILES CC1=CC(=C(C(=C1O)Br)C)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C(=C(C(=C4)C)O)Br)C
WGK Germany 3
PubChem CID 417069
Molecular Weight 568.28
Reaxy-Rn 369060

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.

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Advanced Data

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.

2 results found

Lot NumberCertificate TypeDateItem
L2522275Certificate of AnalysisDec 26, 2025 B141320
L2522276Certificate of AnalysisDec 26, 2025 B141320
Chemical and Physical Properties
SolubilitySoluble in ethanol (1 mg/ml), and water (partly).
Molecular Weight568.300 g/mol
XLogP36.100
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass567.938 Da
Monoisotopic Mass565.94 Da
Topological Polar Surface Area92.200 Ų
Heavy Atom Count31
Formal Charge0
Complexity736.000
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. 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]
2. Xin Zhang, Dapeng Li, Ke Jiang, Chao Zeng, Mi He, Xiancheng Ma, Chongshan Yang, Ling Li, Tao Wen.  (2026)  MOF-enhanced colorimetric sensor array for early detection of citrus infestation by Bactrocera dorsalis.  POSTHARVEST BIOLOGY AND TECHNOLOGY,      [PMID:] [10.1016/j.postharvbio.2026.114242]
Solution Calculators
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