CTC

Product Name: CTC
CAS No.: 90217-02-0
Chemical Name: CTC
Synonyms: CTC;Ctc (biological Stain);Cyanotolyl Tetrazolium, Ctc;CYANODITOLYL TETRAZOLIUM CHLORIDE;CYANOTOLYL TETRAZOLIUM CHLORIDE (CTC);5-CYANO-2,3-DITOLYL TETRAZOLIUM CHLORIDE;5-Cyano-2,3-ditolyl-2H-tetrazolium chloride;5-CYANO-2,3-DI-(P-TOLYL)TETRAZOLIUM CHLORIDE;CTC 5-Cyano-2,3-ditolyl tetrazolium chloride;5-Cyano-2,3-di-p-tolyl-2H-tetrazol-3-ium Chloride
CBNumber: CB4169851
Molecular Formula: C16H14ClN5
Formula Weight: 311.77
MOL File: 90217-02-0.mol

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CTC Property

Melting point:: 225 ℃
storage temp.: 2-8°C
solubility: Soluble in water
form: powder
color: Off-white
λmax: 450nm (of formazan)
BRN: 8954451
Biological Applications: NADPH-cytochrome P 450 reductase activity assays; detecting gamma-hydroxybutyric acid (GHB),metabolic activity,microorganisms; localizing glucose-6-phosphate dehydrogenase activity; monitoring respiratory activity; treating cancer
InChI: InChI=1S/C16H15N5.ClH/c1-13-3-7-15(8-4-13)19-12-18-20(11-17)21(19)16-9-5-14(2)6-10-16;/h3-10,12H,1-2H3;1H
InChIKey: BLCCXPMHHCWJHC-UHFFFAOYSA-N
SMILES: N1(C2=CC=C(C)C=C2)C=NN(C#N)[NH+]1C1=CC=C(C)C=C1.[Cl-]

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26
WGK Germany: 3
F: 8
HS Code: 2933998090
Storage Class: 11 - Combustible Solids
Hazard Classifications: Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 94498
Product name: 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride
Purity: ≥85% (HPLC)
Packaging: 10MG
Price: $54.5
Updated: 2026/04/30

Sigma-Aldrich

Product number: 94498
Product name: 5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride
Purity: ≥85% (HPLC)
Packaging: 50MG
Price: $189
Updated: 2026/04/30

Cayman Chemical

Product number: 15926
Product name: 5-Cyano-2,3-di-(p-tolyl)tetrazolium (chloride)
Packaging: 10mg
Price: $36
Updated: 2026/04/30

Cayman Chemical

Product number: 15926
Product name: 5-Cyano-2,3-di-(p-tolyl)tetrazolium (chloride)
Packaging: 25mg
Price: $66
Updated: 2026/04/30

Cayman Chemical

Product number: 15926
Product name: 5-Cyano-2,3-di-(p-tolyl)tetrazolium (chloride)
Packaging: 50mg
Price: $120
Updated: 2026/04/30

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CTC Chemical Properties,Usage,Production

Description

5-Cyano-2,3-di-(p-tolyl)tetrazolium (chloride) is a redox-sensitive tetrazolium salt used primarily to detect metabolic activity in microorganisms. This membrane-permeable indicator is readily taken up by living cells and reduced by respiratory activity to produce a red fluorescent, water-insoluble formazan crystal (absorption maximum at 450 nm). While the oxidized salt is non-fluorescent, the reduced formazan can be evaluated using a standard rhodamine filter set (excitation: 510-560 nm; emission > 590 nm), although optimum excitation requires a blue 420 nm excitation filter. For flow cytometry, a 480 nm excitation laser combined with detection in the red region is suitable.

Uses

Redox dye producing a fluorescent formazan (only in solid state) upon reduction. It is used as cellular indicator of respiratory activity in cells, especiall for tracking P450 activity.

Uses

5-Cyano-2,3-di-p-tolyltetrazolium Chloride is a monotetrazolium redox dye that is used as a vital stain for actively respiring bacteria. Redox dye producing a fluorescent formazan (only in solid state) upon reduction; used as cellular indicator of respiratory activity in cells.

References

[1] G G RODRIGUEZ. Use of a fluorescent redox probe for direct visualization of actively respiring bacteria.[J]. Applied and Environmental Microbiology, 1992, 58 6: 1801-1808. DOI: 10.1128/aem.58.6.1801-1808.1992
[2] G. CARUSO E. C M Mancuso. Combined fluorescent antibody assay and viability staining for the assessment of the physiological states of Escherichia coli in seawaters[J]. Journal of Applied Microbiology, 2003, 95 2: 225-233. DOI: 10.1046/j.1365-2672.2003.01967.x
[3] M E SIERACKI J N T L Cucci. Flow cytometric analysis of 5-cyano-2,3-ditolyl tetrazolium chloride activity of marine bacterioplankton in dilution cultures.[J]. Applied and Environmental Microbiology, 1999, 65 6: 2409-2417. DOI: 10.1128/aem.65.6.2409-2417.1999
[4] VISHVESH K BHUPATHIRAJU . Application of a tetrazolium dye as an indicator of viability in anaerobic bacteria[J]. Journal of microbiological methods, 1999, 37 3: Pages 231-243. DOI: 10.1016/s0167-7012(99)00069-x

CTC Preparation Products And Raw materials

Raw materials

Preparation Products

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CTC Suppliers

China 47 Germany 3 India 1 Japan 1 Switzerland 3 United Kingdom 3 United States 7 Global 65

Shanghai Beiwanta Biotechnology Co., Ltd.

Tel: 021-67187366 19901745723
Email: info@bwtlab.com
Country: China
ProdList: 9718
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Beijing HuaMeiHuLiBiological Chemical

Tel: 010-56205725
Fax: 010-65763397
Email: waley188@sohu.com
Country: China
ProdList: 12335
Advantage: 58

Synchem OHG

Tel: +49 5662 408730
Fax: +49 5662 4087320
Email: info@synchem.de
Country: Germany
ProdList: 4705
Advantage: 70

Shanghai Macklin Biochemical Co.,Ltd.

Tel: 15221275939; 15221275939
Email: shenlinxing@macklin.cn
Country: China
ProdList: 15781
Advantage: 55

Shanghai Yongye Biotechnology Co., Ltd.

Tel: 86-021-61559134 15921386130
Fax: 021-55068248
Email: 3423497944@qq.com
Country: China
ProdList: 8144
Advantage: 55

Shanghai EFE Biological Technology Co., Ltd.

Tel: 021-65675885 18964387627
Fax: 021-65675885
Email: info@efebio.com
Country: China
ProdList: 9803
Advantage: 58

Shanghai YuanYe Biotechnology Co., Ltd.

Tel: 021-61312847; 18021002903
Fax: QQ:3008007432
Email: 3008007409@qq.com
Country: China
ProdList: 89689
Advantage: 60

Shanghai ChengShao Biological Technology Co., Ltd.

Tel: 021-61847300 13341622919
Fax: 021-61847300
Email: shcss01@163.com
Country: China
ProdList: 4808
Advantage: 58

Beijing OKA biological technology co., LTD

Tel: 010-62971590 18548936886
Fax: 010-62340519
Email: 3462612863@qq.com
Country: China
ProdList: 10063
Advantage: 58

90217-02-0, CTCRelated Search:

EXPRESSION VECTOR PFLAG-CTC,PFLAG CTC-BAP EXPRESSION VECTOR 1,2,3,4,5-pentaphenyl-1'-(di-tert-butylphosphino)ferrocene, ctc-q-phos,1,2,3,4,5-PENTAPHENYL-1'-(DI-T-BUTYLPHOSPHINO)FERROCENE, 95% CTC-Q-PHOS,CTC-Q-PHOS CTC PFLAG CTC-BAP EXPRESSION VECTOR PFLAG CTC-BAP EXPRESSION VECTOR CTC SYR,1702CTC,SLIM (26S/51/AS) PIG LIVER (CTC FREE) 10F-CTC-5/0.47BV PLUNGER ASSEMBLY FOR 1702 CTC PLUNGER ASSEMBLY FOR 1001 CTC CHLORTETRACYCLIN (CTC) 10F-CTC-5/0.47C PLUNGER ASSEMBLY FOR 1005 CTC PLUNGER ASSEMBLY FOR 1710 CTC 250F-CTC-GT-5/0.47C 25F-CTC-GT-5/0.47C PIG LIVER (CTC INCURRED)

5-Cyano-2,3-bis(4-methylphenyl)tetrazolium chloride

CTC

CYANODITOLYL TETRAZOLIUM CHLORIDE

CTC 5-Cyano-2,3-ditolyl tetrazolium chloride

5-CYANO-2,3-DI-(P-TOLYL)TETRAZOLIUM CHLORIDE

5-CYANO-2,3-DITOLYL TETRAZOLIUM CHLORIDE

5-CYANO-2,3-BIS(4-METHYLPHENYL)-2H-TETRAZOLIUM CHLORIDE

2h-tetrazolium, 5-cyano-2,3-bis(4methylphenyl)-, Chloride

Cyanotolyl Tetrazolium, Ctc

Ctc (biological Stain)

CYANOTOLYL TETRAZOLIUM CHLORIDE (CTC)

5-Cyano-2,3-di-(p-tolyl)tetrazolium chloride, ≥85% (HPLC)

5-Cyano-2,3-ditolyl-2H-tetrazolium chloride

5-Cyano-2,3-di-p-tolyl-2H-tetrazol-3-ium Chloride

90217-02-0

C16H14ClN5

C16H14N5Cl

BioChemical

Biochemicals and Reagents

Stains and Dyes

Luminescent Compounds/Detection

marker

Tetrazolium salt