MTS Reagent - ≥95%(HPLC) , CAS No.138169-43-4

CAS: 138169-43-4 Cat. No.: M275698 Molecular Weight: 487.515
AVAILABLE TO ORDER
GRADE & PURITY ≥95%(HPLC)
Synonyms
5-[3-(carboxymethoxy)phenyl]-2-(4,5-dimethyl-1,3-thiazol-2-yl)-3-(4-sulfonatophenyl)-3H-1,2,3,4-tetrazol-2-ylium | FT-0629025 | 5-[3-(Carboxymethoxy)phenyl]-3-(4,5-dimethyl-2-thiazolyl)-2-(4-sulfophenyl)-2H-tetrazolium inner salt | 3-(4,5-Dimethylthiazol-
Storage
Store at 2-8°C,Protected from light,Argon charged,Desiccated
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100mg
M275698-100mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$189.90
250mg
M275698-250mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$349.90
1g
M275698-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$709.90
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Why this grade

≥95%(HPLC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Protected from light,Argon charged,Desiccated Ships Wet ice 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 4 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

MTS reagent is one of the most common water-soluble tetrazolium reagents that are widely used to quantify cell viability by absorption spectrophotometry. A variety of tetrazolium inner salts are used for determining cell viability in proliferation assays by monitoring their color changes. Metabolically active cells reduce colorless tetrazolium inner salts into the colored formazan products that might be either soluble or insoluble in cell culture media depending on the structures of tetrazolium reagents. The conversion of tetrazolium inner salts to formazans is thought to be carried out by NAD(P)H-dependent dehydrogenase enzymes.

Application:

Cell Viability Assay; Cell Proliferation Assay; Cytotoxicity Assay

Specifications

Synonyms
5-[3-(carboxymethoxy)phenyl]-2-(4, 5-dimethyl-1, 3-thiazol-2-yl)-3-(4-sulfonatophenyl)-3H-1, 2, 3, 4-tetrazol-2-ylium | FT-0629025 | 5-[3-(Carboxymethoxy)phenyl]-3-(4, 5-dimethyl-2-thiazolyl)-2-(4-sulfophenyl)-2H-tetrazolium inner salt | 3-(4, 5-Dimethylthiazol-
Specifications & Purity
≥95%(HPLC)
Stability And Storage
Store at 2-8℃ long term (1 year).Store in the dark. Desiccated. Under Inert Atmosphere.
Storage
Store at 2-8°C, Protected from light, Argon charged, Desiccated
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥95%(HPLC)
Names and Identifiers
Canonical SmilesCC1=C(SC(=N1)[N+]2=NC(=NN2C3=CC=C(C=C3)S(=O)(=O)[O-])C4=CC(=CC=C4)OCC(=O)O)C
IUPAC Name4-[5-[3-(carboxymethoxy)phenyl]-3-(4,5-dimethyl-1,3-thiazol-2-yl)tetrazol-3-ium-2-yl]benzenesulfonate
InChIKeyAPRZHQXAAWPYHS-UHFFFAOYSA-N
INCHI1S/C20H17N5O6S2/c1-12-13(2)32-20(21-12)25-23-19(14-4-3-5-16(10-14)31-11-18(26)27)22-24(25)15-6-8-17(9-7-15)33(28,29)30/h3-10H,11H2,1-2H3,(H-,26,27,28,29,30)
Isomeric SMILES CC1=C(SC(=N1)[N+]2=NC(=NN2C3=CC=C(C=C3)S(=O)(=O)[O-])C4=CC(=CC=C4)OCC(=O)O)C
Molecular Weight 487.515
Reaxy-Rn 24181324
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=24181324&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.

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
ClassAzoles
SubclassTetrazoles
Intermediate Tree Nodes Not available
Direct ParentPhenyltetrazoles and derivatives
Alternative Parents Phenoxyacetic acid derivatives  Benzenesulfonic acids and derivatives  1-sulfo,2-unsubstituted aromatic compounds  Benzenesulfonyl compounds  Phenoxy compounds  Phenol ethers  2,4,5-trisubstituted thiazoles  Alkyl aryl ethers  Sulfonyls  Organosulfonic acids  Heteroaromatic compounds  Carboxylic acids  Azacyclic compounds  Monocarboxylic acids and derivatives  Organopnictogen compounds  Carbonyl compounds  Organic zwitterions  Organonitrogen compounds  Hydrocarbon derivatives  Organic oxides  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Phenoxyacetate - Phenyltetrazole - Benzenesulfonate - Arylsulfonic acid or derivatives - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - 2,4,5-trisubstituted 1,3-thiazole - Phenoxy compound - Phenol ether - Alkyl aryl ether - Monocyclic benzene moiety - Benzenoid - Organic sulfonic acid or derivatives - Thiazole - Sulfonyl - Organosulfonic acid - Heteroaromatic compound - Organosulfonic acid or derivatives - Carboxylic acid derivative - Carboxylic acid - Ether - Monocarboxylic acid or derivatives - Azacycle - Organonitrogen compound - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Carbonyl group - Organooxygen compound - Organosulfur compound - Hydrocarbon derivative - Organic oxide - Organic zwitterion - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as phenyltetrazoles and derivatives. These are compounds containing a phenyltetrazole skeleton, which consists of a tetrazole bound to a phenyl group.
External Descriptors Not available
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.

3 results found

Lot NumberCertificate TypeDateItem
C2605583Certificate of AnalysisDec 16, 2025 M275698
C2605584Certificate of AnalysisDec 16, 2025 M275698
C2605587Certificate of AnalysisDec 16, 2025 M275698
Chemical and Physical Properties
SolubilitySoluble in water.
Molecular Weight487.500 g/mol
XLogP34.800
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count10
Rotatable Bond Count6
Exact Mass487.062 Da
Monoisotopic Mass487.062 Da
Topological Polar Surface Area188.000 Ų
Heavy Atom Count33
Formal Charge0
Complexity777.000
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
Documents & Articles
Citations of This Product
References
1. Kehua Wang, Ling Wang, Zhuye Shang, Xingzhi Yang, Hongmei Li, Xiaochun Wang, Mingchang Zhu, Qingtao Meng.  (2024)  A series of DNA targeted Cu (II) complexes containing 1,8-naphthalimide ligands: Synthesis, characterization and in vitro anticancer activity.  JOURNAL OF INORGANIC BIOCHEMISTRY,      [PMID:39236444] [10.1016/j.jinorgbio.2024.112721]
2. Yujie Zhu, Chenchen Song, Dongdong Yao, Fangyu Qiao, Yang Zou, Yonggang Lv.  (2025)  Liquid Metal-Based Conductive Nerve Guidance Conduit Combined With Electrical Stimulation Boosts Peripheral Nerve Repair.  JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A,  113  (2): (e37880).  [PMID:39893555] [10.1002/jbm.a.37880]
3. Yuan Tian, Yunjia Song, Jialin Liu, Suli Lan, Bo Chen, Ying Li, Jianmin Han.  (2024)  Nanoparticle-mediated photothermal and photodynamic antibacterial therapy for the treatment of periodontitis.  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,      [PMID:] [10.1016/j.colsurfa.2024.135988]
4. Hongqiang Li, Chenglong Liu, Zhaokai Peng, Qian Chen, Richard M. Kasomo, Yanfeng Jin, Xiaoqing Weng, Nelima M. Ondiaka, Yingxin Chen, Shaoxian Song.  (2024)  Utilization of methyltrichlorosilane as a novel and efficient reagent to enhance fluorine recovery from wet-process phosphoric acid.  Journal of Cleaner Production,      [PMID:] [10.1016/j.jclepro.2024.141295]
Solution Calculators
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