Olsalazine Sodium - ≥99% , CAS No.6054-98-4

CAS: 6054-98-4 Cat. No.: O129450 Molecular Weight: 346.2 EC Number: 227-975-7 PubChem CID: 135413505
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
P17048 | UNII-Y7JEW0XG7I | Benzoic acid, 3,3'-azobis(6-hydroxy-, disodium salt | SW219353-1 | SW219659-1 | 4,4'-Dihydroxyazobenzene-3,3'-dicarboxylic Acid Disodium Salt | FT-0657732 | HMS3264H09 | Y7JEW0XG7I | ZJEFYLVGGFISGT-UHFFFAOYSA-L | 3,3'-azo-bis(6-
Storage
Protected from light,Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
O129450-1g
6
$18.90
5g
O129450-5g
5
$77.90
25g
O129450-25g
2

$281.90

$351.90
Save $70.00 (19.89%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Protected from light,Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Olsalazine Sodium is a mesalamine dimer.Olsalazine Sodium is a anti-inflammatory prodrug, which consists of two 5-ASA moieties linked by an azo bond.
An anti-inflammatory agent

Specifications

Synonyms
P17048 | UNII-Y7JEW0XG7I | Benzoic acid, 3, 3'-azobis(6-hydroxy-, disodium salt | SW219353-1 | SW219659-1 | 4, 4'-Dihydroxyazobenzene-3, 3'-dicarboxylic Acid Disodium Salt | FT-0657732 | HMS3264H09 | Y7JEW0XG7I | ZJEFYLVGGFISGT-UHFFFAOYSA-L | 3, 3'-azo-bis(6-
Specifications & Purity
≥99%
Biochemical and Physiological Mechanisms
Anti-inflammatory agent. Prodrug of Mesalamine ( Asc 3052 ). Shows anticolitis effects in vivo . Orally active.
Storage
Protected from light, Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥99%
Names and Identifiers
Pubchem Sid488202862
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488202862
Canonical SmilesC1=CC(=C(C=C1N=NC2=CC(=C(C=C2)[O-])C(=O)O)C(=O)O)[O-].[Na+].[Na+]
IUPAC Namedisodium;2-carboxy-4-[(3-carboxy-4-oxidophenyl)diazenyl]phenolate
InChIKeyZJEFYLVGGFISGT-UHFFFAOYSA-L
INCHI1S/C14H10N2O6.2Na/c17-11-3-1-7(5-9(11)13(19)20)15-16-8-2-4-12(18)10(6-8)14(21)22;;/h1-6,17-18H,(H,19,20)(H,21,22);;/q;2*+1/p-2
Isomeric SMILES C1=CC(=C(C=C1N=NC2=CC(=C(C=C2)[O-])C(=O)O)C(=O)O)[O-].[Na+].[Na+]
PubChem CID 135413505
Molecular Weight 346.2

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
ClassAzobenzenes
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentAzobenzenes
Alternative Parents Salicylic acids  Benzoic acids  Benzoyl derivatives  1-hydroxy-2-unsubstituted benzenoids  Dicarboxylic acids and derivatives  Vinylogous acids  Azo compounds  Carboxylic acid salts  Propargyl-type 1,3-dipolar organic compounds  Carboxylic acids  Hydrocarbon derivatives  Organic oxides  Organic sodium salts  Organic zwitterions  Organooxygen compounds  Organopnictogen compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Azobenzene - Hydroxybenzoic acid - Salicylic acid or derivatives - Salicylic acid - Benzoic acid or derivatives - Benzoic acid - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Monocyclic benzene moiety - Dicarboxylic acid or derivatives - Benzenoid - Vinylogous acid - Azo compound - Carboxylic acid salt - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Carboxylic acid derivative - Carboxylic acid - Organic alkali metal salt - Organic zwitterion - Organonitrogen compound - Hydrocarbon derivative - Organooxygen compound - Organic sodium salt - Organic oxide - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Organic salt - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring.
External Descriptors organic sodium salt
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.

11 results found

Lot NumberCertificate TypeDateItem
K1827159Certificate of AnalysisApr 15, 2026 O129450
J1822058Certificate of AnalysisApr 15, 2026 O129450
J1822057Certificate of AnalysisApr 15, 2026 O129450
C2604125Certificate of AnalysisMar 19, 2026 O129450
E2317931Certificate of AnalysisMar 04, 2025 O129450
E2317938Certificate of AnalysisMar 04, 2025 O129450
E2317964Certificate of AnalysisMar 04, 2025 O129450
E2317968Certificate of AnalysisMar 04, 2025 O129450
E2317969Certificate of AnalysisMar 04, 2025 O129450
E2317976Certificate of AnalysisMar 04, 2025 O129450
K2221162Certificate of AnalysisDec 06, 2022 O129450

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Chemical and Physical Properties
SolubilitySoluble in water, and DMSO.
Sensitivitylight sensitive;Moisture sensitive
Melt Point(°C)294 °C(dec.)
Molecular Weight346.200 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count8
Rotatable Bond Count4
Exact Mass346.018 Da
Monoisotopic Mass346.018 Da
Topological Polar Surface Area145.000 Ų
Heavy Atom Count24
Formal Charge0
Complexity415.000
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 Count3
Citations of This Product
References
1. Jiaying Li, Yuji Pu, Sai Li, Bin He, Jianlin Chen.  (2023)  Orally Administrated Olsalazine-Loaded Multilayer Pectin/Chitosan/Alginate Composite Microspheres for Ulcerative Colitis Treatment.  BIOMACROMOLECULES,      [PMID:37068182] [10.1021/acs.biomac.3c00146]
2. Qiqi Sun, Jun Chen, Quan Zhao, Ziyun He, Lei Tang, Yuji Pu, Bin He.  (2023)  Bio-adhesive and ROS-scavenging hydrogel microspheres for targeted ulcerative colitis therapy.  INTERNATIONAL JOURNAL OF PHARMACEUTICS,      [PMID:37068716] [10.1016/j.ijpharm.2023.122962]
3. Yifei Wang, Yaning Xia, Mengyang Zhou, Yong Zhang, Jingliang Cheng, Yupeng Shi.  (2025)  An orally biological chemotaxis-guided hypoxia-responsive biomimetic microcapsules for visualizing multi-faceted synergistic therapy of inflammatory bowel disease.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2025.160203]
Solution Calculators
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