Brilliant Yellow - Dye content ≥50 % , CAS No.3051-11-4

CAS: 3051-11-4 Cat. No.: B294460 Molecular Weight: 624.55 Beilstein Registry Number: 4122338 EC Number: 221-267-1 PubChem CID: 135442944
AVAILABLE TO ORDER
GRADE & PURITY Dye content ≥50 %
Synonyms
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-(2-(4-hydroxyphenyl)diazenyl)-, sodium salt (1:2) | Direct Yellow 4 | Paper Yellow 3GX | Paper Yellow CB | B0783 | Benzo Brilliant Yellow | 4,4'-Bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulfonic acid,sodium
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
B294460-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$205.90
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Why this grade

Dye content ≥50 % 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Benzenesulfonic acid, 2, 2'-(1, 2-ethenediyl)bis(5-(2-(4-hydroxyphenyl)diazenyl)-, sodium salt (1:2) | Direct Yellow 4 | Paper Yellow 3GX | Paper Yellow CB | B0783 | Benzo Brilliant Yellow | 4, 4'-Bis[(4-hydroxyphenyl)azo]stilbene-2, 2'-disulfonic acid, sodium
Specifications & Purity
Dye content ≥50 %
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Canonical SmilesC1=CC(=CC=C1N=NC2=CC(=C(C=C2)C=CC3=C(C=C(C=C3)N=NC4=CC=C(C=C4)O)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]
IUPAC Namedisodium;5-[(4-hydroxyphenyl)diazenyl]-2-[(E)-2-[4-[(4-hydroxyphenyl)diazenyl]-2-sulfonatophenyl]ethenyl]benzenesulfonate
InChIKeyYLDIUICHQPKMNH-ZFEDVODKSA-L
INCHI1S/C26H20N4O8S2.2Na/c31-23-11-7-19(8-12-23)27-29-21-5-3-17(25(15-21)39(33,34)35)1-2-18-4-6-22(16-26(18)40(36,37)38)30-28-20-9-13-24(32)14-10-20;;/h1-16,31-32H,(H,33,34,35)(H,36,37,38);;/q;2*+1/p-2/b2-1+,29-27?,30-28?;;
Isomeric SMILES C1=CC(=CC=C1N=NC2=CC(=C(C=C2)/C=C/C3=C(C=C(C=C3)N=NC4=CC=C(C=C4)O)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]
WGK Germany 3
PubChem CID 135442944
Molecular Weight 624.55
Beilstein 4122338
Reaxy-Rn 6952957

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

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Molecular Weight624.600 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count12
Rotatable Bond Count6
Exact Mass624.036 Da
Monoisotopic Mass624.036 Da
Topological Polar Surface Area221.000 Ų
Heavy Atom Count42
Formal Charge0
Complexity1000.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count1
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds1
Covalently-Bonded Unit Count3
References
1. Wenjing Geng, Zechen Zhang, Qi Guo, Yuchen Liu, Xinxin Ye, Hui Zhang, Chen Fu, Fengguang Liu, Yujun Zhu, Cheng Chen.  (2023)  Tailoring graphene oxide nanofiltration membrane with adjustable nanochannels for enhanced molecule separation.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2023.147327]
2. Mao Xu, Qi Tang, Yuchen Liu, Jiaqi Shi, Weiyu Zhang, Chan Guo, Qiuwen Liu, Weiwei Lei, Cheng Chen.  (2023)  Charged Boron Nitride Nanosheet Membranes for Improved Organic Solvent Nanofiltration.  ACS Applied Materials & Interfaces,      [PMID:36820819] [10.1021/acsami.2c20893]
3. Xi Chen, Yi He, Yi Fan, Guangyong Zeng, Liyun Zhang.  (2018)  Nature-inspired polyphenol chemistry to fabricate halloysite nanotubes decorated PVDF membrane for the removal of wastewater.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2018.11.036]
4. Yingqing Zhan, Xinyi Wan, Shuangjiang He, Qiangbin Yang, Yi He.  (2017)  Design of durable and efficient poly(arylene ether nitrile)/bioinspired polydopamine coated graphene oxide nanofibrous composite membrane for anionic dyes separation.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2017.09.147]
5. Sui Wang, Jing Wei, Shasha Lv, Zhiyong Guo, Feng Jiang.  (2013)  Removal of Organic Dyes in Environmental Water onto Magnetic-Sulfonic Graphene Nanocomposite.  CLEAN-Soil Air Water,  41  (10): (992-1001).  [PMID:] [10.1002/clen.201200460]
6. Maohua Yang, Liangli Li, Chunni Zhao, Mei Zhang, Mingyan Jia.  (2024)  A colorimetric sensor array for the rapid identification of benzylisoquinoline alkaloids and Coptidis Rhizoma based on urease inhibition.  FOOD CHEMISTRY,      [PMID:39755044] [10.1016/j.foodchem.2024.142610]
7. Jingjing Huang, Hu Liao, Yangyang Zhang, Wanze Wu, Min Wu, Xiao Gong.  (2025)  Light-Driven Actuator Using Superhydrophobic Polymer Composite Films for Biomimetics and Water-Droplet Manipulation.  ACS Applied Materials & Interfaces,      [PMID:40773694] [10.1021/acsami.5c13258]
8. Guangyong Zeng, Zhongbin Ye, Yi He, Xi Yang, Jing Ma, Heng Shi, Ziliang Feng.  (2017)  Application of dopamine-modified halloysite nanotubes/PVDF blend membranes for direct dyes removal from wastewater.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2017.04.131]
9. Liu Xu, Zhang Yihan, Xie Yifan, Wang Ledu, Gan Liyu, Li Jialei, Li Jiahe, Zhang Hongli, Chen Linjiang, Shang Weiwei, Jiang Jun, Zou Gang.  (2025)  Design of circularly polarized phosphorescence materials guided by transfer learning.  Nature Communications,  16  (1): (1-10).  [PMID:40436886] [10.1038/s41467-025-60310-6]
10. Menghui Li, Kai Wang, Shuwan Wang, Zihao Tian, Zhouli Wang, Yahong Yuan, Tianli Yue.  (2026)  High-dimensional colorimetric sensor array based on composite dyes for rapid detection of antioxidant properties during goji berry juice fermentation.  FOOD CHEMISTRY,      [PMID:] [10.1016/j.foodchem.2026.149601]
Solution Calculators
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