Phenazopyridine HCl - ≥98% , CAS No.136-40-3

CAS: 136-40-3 Cat. No.: P129622 Molecular Weight: 249.7 EC Number: 205-243-8
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
component of Azotrex | Di-Azo | NC-150 | QQBPIHBUCMDKFG-UHFFFAOYSA-N | Phenazopyridine hydrochloride(USAN) | Sedural | W-1655 | AC-2036 | NCGC00018130-04 | NSC227115 | Phenazopyridine HCl | 2,6-Pyridinediamine, 3-(phenylazo)-, monohydrochloride | AI3-5127
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
P129622-1g
3

$9.90

$14.90
Save $5.00 (33.56%)
5g
P129622-5g
8

$18.90

$28.90
Save $10.00 (34.60%)
25g
P129622-25g
6

$52.90

$79.90
Save $27.00 (33.79%)
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Why this grade

≥98% 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.

Overview

Phenazopyridine HCl is a local analgesic that has been used in urinary tract disorders.
A compound which can be used as an analgesic for the urinary tract.

Specifications

Synonyms
component of Azotrex | Di-Azo | NC-150 | QQBPIHBUCMDKFG-UHFFFAOYSA-N | Phenazopyridine hydrochloride(USAN) | Sedural | W-1655 | AC-2036 | NCGC00018130-04 | NSC227115 | Phenazopyridine HCl | 2, 6-Pyridinediamine, 3-(phenylazo)-, monohydrochloride | AI3-5127
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Phenazopyridine, Hydrochloride can be used as an analgesic for the urinary tract.Excreted in the urine where it exerts a topical analgesic effect on the mucosa of the urinary tract. Directly inhibits the mechanosensitive Aδ-fibers in the normal rat bladde
Storage
Room temperature
Shipped In
Normal
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
≥98%
Names and Identifiers
Pubchem Sid488180860
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488180860
Canonical SmilesC1=CC=C(C=C1)N=NC2=C(N=C(C=C2)N)N.Cl
IUPAC Name3-phenyldiazenylpyridine-2,6-diamine;hydrochloride
InChIKeyQQBPIHBUCMDKFG-UHFFFAOYSA-N
INCHI1S/C11H11N5.ClH/c12-10-7-6-9(11(13)14-10)16-15-8-4-2-1-3-5-8;/h1-7H,(H4,12,13,14);1H
Isomeric SMILES C1=CC=C(C=C1)N=NC2=C(N=C(C=C2)N)N.Cl
RTECS US7875000
UN Number 2811
Packing Group I
Molecular Weight 249.7
Reaxy-Rn 4924060
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4924060&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.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassPyridines and derivatives
SubclassAminopyridines and derivatives
Intermediate Tree Nodes Not available
Direct ParentAminopyridines and derivatives
Alternative Parents Imidolactams  Benzene and substituted derivatives  Heteroaromatic compounds  Azo compounds  Propargyl-type 1,3-dipolar organic compounds  Azacyclic compounds  Primary amines  Organopnictogen compounds  Hydrochlorides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Aminopyridine - Monocyclic benzene moiety - Benzenoid - Imidolactam - Heteroaromatic compound - Azo compound - Azacycle - Propargyl-type 1,3-dipolar organic compound - Organic 1,3-dipolar compound - Amine - Primary amine - Organonitrogen compound - Hydrocarbon derivative - Organopnictogen compound - Organic nitrogen compound - Hydrochloride - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as aminopyridines and derivatives. These are organic heterocyclic compounds containing an amino group attached to a pyridine ring.
External Descriptors hydrochloride
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.

6 results found

Lot NumberCertificate TypeDateItem
E2406056Certificate of AnalysisFeb 05, 2026 P129622
K2504769Certificate of AnalysisApr 27, 2024 P129622
K2504770Certificate of AnalysisApr 27, 2024 P129622
L2103665Certificate of AnalysisSep 20, 2023 P129622
F1510069Certificate of AnalysisJan 20, 2023 P129622
D2325250Certificate of AnalysisDec 09, 2021 P129622
Chemical and Physical Properties
SolubilitySoluble in Methanol and Slightly Soluble in Cold Water
Melt Point(°C)238°C
Molecular Weight249.700 g/mol
XLogP3
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass249.078 Da
Monoisotopic Mass249.078 Da
Topological Polar Surface Area89.700 Ų
Heavy Atom Count17
Formal Charge0
Complexity237.000
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 Count2
Solution Calculators
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