WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 510339

CAS#: 101199-38-6 (sodium)

Description: PTZ-343 is a phenothiazine (PTZ) derivative with chemical name sodium 3-(10H-phenothiazin-10-yl)propane-1-sulfonate. The free acid of PTZ-343 has molecule weight 343. For the convenience of commucation, we call it as PTZ-343. PTZ-343 is a water-soluble enhancer of luminol chemiluminescent peroxidation catalyzed by horseradish peroxidase (HRP). It acts as an electron transfer mediator, reacting with HRP-II to release HRP and a PTZ-343 radical, which oxidizes luminol anions to induce light emission.

Chemical Structure

CAS# 101199-38-6 (sodium)

Theoretical Analysis

MedKoo Cat#: 510339
Name: PTZ-343
CAS#: 101199-38-6 (sodium)
Chemical Formula: C15H14NNaO3S2
Exact Mass:
Molecular Weight: 343.39
Elemental Analysis: C, 52.46; H, 4.11; N, 4.08; Na, 6.69; O, 13.98; S, 18.68

Size Price Shipping out time Quantity
100g USD 3650 2 Weeks
200g USD 4950 2 Weeks
500g USD 7950 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-05. Prices are subject to change without notice.

PTZ-343 sodium is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 100 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Related CAS #: 101199-38-6 (sodium)   129808-92-0 (free acid)    

Synonym: PTZ343; PTZ 343; PTZ-343; PTZ-343 sodium.

IUPAC/Chemical Name: sodium 3-(10H-phenothiazin-10-yl)propane-1-sulfonate


InChi Code: InChI=1S/C15H15NO3S2.Na/c17-21(18,19)11-5-10-16-12-6-1-3-8-14(12)20-15-9-4-2-7-13(15)16;/h1-4,6-9H,5,10-11H2,(H,17,18,19);/q;+1/p-1

SMILES Code: O=S(CCCN1C2=C(C=CC=C2)SC3=CC=CC=C13)([O-])=O.[Na+]

White solid powder

>95% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Preparing Stock Solutions

The following data is based on the product molecular weight 343.39 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1. Marzocchi, E.,Grilli, S.,Della Ciana, L., et al. Chemiluminescent detection systems of horseradish peroxidase employing nucleophilic acylation catalysts. Anal. Biochem. 377(2), 189-194 (2008).

2. Vdovenko, M.M.,Della Ciana, L. and Sakharov, I.Y. 3-(100-Phenothiazinyl)propane-1-sulfonate is a potent enhancer of soybean peroxidase-induced chemiluminescence. Anal. Biochem. 392(1), 54-58 (2009).

3. Masato. Sakaguchi , Ming. Hu , Larry. Kevan. Photoionization of alkylphenothiazines in vesicles: effects of the alkyl chain length and the vesicle surface charge. J. Phys. Chem., 1990, 94 (2), pp 870–874.