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Methyl red - reagent grade, high purity , CAS No.493-52-7

72 Citations

COA

Grade & Purity:

Cas Number: 493-52-7
Molecular Weight: 269.3
Beilstein Registry Number: 750102
EC Number: 207-776-1
MDL number: MFCD00002425
PubChem CID: 10303
PubChem SID: 488181110

In stock

Item Number

M101205

Grouped product items
SKU	Size	Availability	Price
M101205-25g	25g	3	$17.90
M101205-100g	100g	5	$48.90
M101205-500g	500g	Available within 4-8 weeks(?) Items will be manufactured post-order and can take 4-8 weeks. Thank you for your patience!	$179.90

View related series

Acid dye (56) Six membered carbocyclic compound (243)

Basic Description

Synonyms	M0421 \| DB08209 \| Methyl red, CI 13020 \| o-[[p-(Dimethylamino)phenyl]azo]benzoic acid \| 2-((4-(dimethylamino)phenyl)diazenyl)benzoic acid \| A827705 \| STK391287 \| 4-Dimethylamino-2'-carboxylazobenzene \| Tox21_301336 \| Methyl Red free acid ACS \| 2-(4-Dimeth
Specifications & Purity	AR
Shipped In	Normal
Grade	AR

Taxonomic Classification

Taxonomy Tree

Kingdom Organic compounds
- Superclass Organoheterocyclic compounds
  - Class Azobenzenes

Kingdom	Organic compounds
Superclass	Organoheterocyclic compounds
Class	Azobenzenes
Subclass	Not available
Intermediate Tree Nodes	Not available
Direct Parent	Azobenzenes
Alternative Parents	Benzoic acids Dialkylarylamines Benzoyl derivatives Aniline and substituted anilines Azo compounds Amino acids Propargyl-type 1,3-dipolar organic compounds Monocarboxylic acids and derivatives Carboxylic acids Organopnictogen compounds Organooxygen compounds Organic oxides Hydrocarbon derivatives
Molecular Framework	Aromatic homomonocyclic compounds
Substituents	Azobenzene - Benzoic acid or derivatives - Benzoic acid - Benzoyl - Tertiary aliphatic/aromatic amine - Dialkylarylamine - Aniline or substituted anilines - Benzenoid - Monocyclic benzene moiety - Amino acid - Azo compound - Tertiary amine - Amino acid or derivatives - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Carboxylic acid derivative - Monocarboxylic acid or derivatives - Carboxylic acid - Organic oxide - Organonitrogen compound - Amine - Organic oxygen compound - Organic nitrogen compound - Organooxygen compound - Organopnictogen compound - Hydrocarbon derivative - Aromatic homomonocyclic compound
Description	This 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	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

Pubchem Sid	488181110
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/488181110
IUPAC Name	2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
INCHI	InChI=1S/C15H15N3O2/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20/h3-10H,1-2H3,(H,19,20)
InChIKey	CEQFOVLGLXCDCX-UHFFFAOYSA-N
Smiles	CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O
Isomeric SMILES	CN(C)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O
WGK Germany	2
Molecular Weight	269.3
Beilstein	750102
Reaxy-Rn	750102
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=750102&ln=

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.

29 results found

Lot Number	Certificate Type	Date	Item
E2508277	Certificate of Analysis	May 13, 2025	M101205
E2508278	Certificate of Analysis	May 13, 2025	M101205
G2405568	Certificate of Analysis	Jul 17, 2024	M101205
G2405569	Certificate of Analysis	Jul 17, 2024	M101205
G2405570	Certificate of Analysis	Jul 17, 2024	M101205
D2514024	Certificate of Analysis	Jul 17, 2024	M101205
E2406064	Certificate of Analysis	May 27, 2024	M101205
A2425023	Certificate of Analysis	Jan 31, 2024	M101205
C2411038	Certificate of Analysis	Jan 31, 2024	M101205
C2419188	Certificate of Analysis	Jan 31, 2024	M101205
A2403439	Certificate of Analysis	Jan 08, 2024	M101205
A2403438	Certificate of Analysis	Jan 08, 2024	M101205
J2318420	Certificate of Analysis	Oct 31, 2023	M101205
D2325815	Certificate of Analysis	May 13, 2023	M101205
D2325826	Certificate of Analysis	May 13, 2023	M101205
D2325838	Certificate of Analysis	May 13, 2023	M101205
B2303817	Certificate of Analysis	Feb 08, 2023	M101205
B2303816	Certificate of Analysis	Feb 08, 2023	M101205
K2208570	Certificate of Analysis	Nov 10, 2022	M101205
K2208516	Certificate of Analysis	Nov 10, 2022	M101205
K2208517	Certificate of Analysis	Nov 10, 2022	M101205
E2224210	Certificate of Analysis	May 28, 2022	M101205
C2218043	Certificate of Analysis	Mar 21, 2022	M101205
F2214660	Certificate of Analysis	Jan 25, 2022	M101205
A2220406	Certificate of Analysis	Jan 25, 2022	M101205
F2214661	Certificate of Analysis	Jan 25, 2022	M101205
A2220407	Certificate of Analysis	Jan 25, 2022	M101205
F2214662	Certificate of Analysis	Jan 25, 2022	M101205
A2220359	Certificate of Analysis	Jan 25, 2022	M101205

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Chemical and Physical Properties

Sensitivity	Moisture sensitive.
Melt Point(°C)	179 - 182 °C
Molecular Weight	269.300 g/mol
XLogP3	3.300
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	4
Exact Mass	269.116 Da
Monoisotopic Mass	269.116 Da
Topological Polar Surface Area	65.300 Å²
Heavy Atom Count	20
Formal Charge	0
Complexity	349.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

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