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Name	2,3,5-Triphenyltetrazolium chloride	EINECS	206-071-6
CAS No.	298-96-4	Density	1.1704 (rough estimate)
PSA	34.59000	LogP	0.21500
Solubility	soluble in water	Melting Point	250 °C(lit.)
Formula	C₁₉H₁₅N₄Cl	Boiling Point	>360
Molecular Weight	334.808	Flash Point	91.7oC
Transport Information	N/A	Appearance	white powder
Safety	26-36	Risk Codes	36/37/38-20/21/22
Molecular Structure		Hazard Symbols	Xi,Xn
Synonyms	2,3,5-Triphenyl-2H-tetrazoliumchloride (6CI);2H-Tetrazolium, 2,3,5-triphenyl-, chloride (8CI,9CI);1,3,5-Triphenyl-2H-tetrazoliumchloride;Red tetrazolium;Tetrazoliumchloride;Tetrazolium red;Urocheck;Uroscreen;Vitastain;Triphenyltetrazolium chloride;	Article Data	24

2,3,5-Triphenyltetrazolium chloride Synthetic route

: 531-52-2
1,3,5-triphenylformazan

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
With thallium(III) acetate In acetic acid	95%
With sodium hydroxide; chlorine In ethanol at -5 - -1℃; for 0.666667h;	92%
With N-chloro-succinimide In dichloromethane; water at 0℃; for 5h;	90%

: 49624-20-6
1,3,5-triphenylformazan

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
With N-chlorobenzotriazole In benzene for 0.25h; Heating;	88%
With hydrogenchloride; isopentyl nitrite In chloroform	40%

: 128-09-6
N-chloro-succinimide

: 531-52-2
1,3,5-triphenylformazan

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
With ethyl acetate

: 3481-09-2
N-chlorophthalimide

: 531-52-2
1,3,5-triphenylformazan

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
With ethyl acetate

: 507-40-4
tert-butylhypochlorite

: 531-52-2
1,3,5-triphenylformazan

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
With potassium hydroxide; chloroform

: triphenyltetrazolium borate

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
With hydrogenchloride	1.7 g

: 7647-01-0
hydrogenchloride

: 531-52-2
1,3,5-triphenylformazan

: 110-46-3
isopentyl nitrite

: 298-96-4
triphenyltetrazolium chloride

: 100-52-7
benzaldehyde

: 62-53-3
aniline

: 100-63-0
phenylhydrazine

: 298-96-4
triphenyltetrazolium chloride

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: sodium nitrite / water / 2 h / 20 °C 2: N-chloro-succinimide / water; dichloromethane / 5 h / 0 °C View Scheme

2,3,5-Triphenyltetrazolium chloride Toxicity Data With Reference

ivn-mus LD50:5600 µg/kg

CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#00925 .

2,3,5-Triphenyltetrazolium chloride Consensus Reports

Reported in EPA TSCA Inventory.

2,3,5-Triphenyltetrazolium chloride Specification

1.Introduction of 2,3,5-Triphenyltetrazolium chloride

2,3,5-Triphenyltetrazolium chloride, with its CAS NO.298-96-4, is a kind of White to yellow powder . It has synonyms of 2,3,5-Triphenyl-2H-tetrazoliumchloride (6CI);2H-Tetrazolium, 2,3,5-triphenyl-, chloride (8CI,9CI) and 1,3,5-Triphenyl-2H-tetrazoliumchloride.2,3,5-Triphenyltetrazolium chloride should be stored in shady and cool warehouse and mainly used as analytical reagents and chromatographic analysis of reagent.

2.Properties of 2,3,5-Triphenyltetrazolium chloride

(1) Molecular Weight 334.8022 [g/mol] (2) Molecular Formula C19H15ClN4 (3) H-Bond Acceptor 3

(4) Rotatable Bond Count 3 (5) Exact Mass 334.098524 (6) MonoIsotopic Mass 334.098524

(7) Topological Polar Surface Area 34.6 (8) Heavy Atom Count 24 (9) Complexity 330 (10) Covalently-Bonded Unit Count 2

3.Structure descriptors of 2,3,5-Triphenyltetrazolium chloride

IUPAC Name: 2,3,5-triphenyltetrazol-2-ium chloride

InChI: InChI=1S/C19H15N4.ClH/c1-4-10-16(11-5-1)19-20-22(17-12-6-2-7-13-17)23(21-19)18-14-8-3-9-15-18;/h1-15H;1H/q+1;/p-1

InChIKey: PKDBCJSWQUOKDO-UHFFFAOYSA-MCanonical SMILES : C1=CC=C(C=C1)C2=NN([N+](=N2)C3=CC=CC=C3)C4=CC=CC=C4.[Cl-]

4.Safety information of 2,3,5-Triphenyltetrazolium chloride

Hazard Codes:Xi,Xn
Risk Statements:
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing

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