5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II)
5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II) (CAS: 28903-71-1), with the empirical formula C48H36CoN4O4 and a molecular weight of 791.76 g/mol, is a specialised cobalt porphyrin complex. This compound serves as a crucial starting material in the synthesis of cobalt nitrosyl porphyrins, which are integral to studies concerning the binding and activation mechanisms of nitric oxide. Its specific absorption maxima are at 417 nm and 530 nm.
- Synonyms
- 20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II)28903-71-1C48H36CoN4O4

Synthesis of Cobalt Nitrosyl Porphyrins
Serves as a key precursor in the laboratory synthesis of cobalt nitrosyl porphyrins. These derivatives are employed in biochemical and chemical research to investigate the complex processes of nitric oxide binding and activation.
Catalysis Research
Utilised as a starting material in the development of novel catalysts. Its porphyrin structure and cobalt centre offer unique electronic and steric properties relevant to various catalytic transformations.
Materials Science Investigations
Applicable in materials science for the development of functional materials. The electronic and optical properties of porphyrin complexes can be exploited in areas such as organic electronics and photonic devices.
| Molecular weight | 791.76 |
|---|---|
| Empirical formula | C48H36CoN4O4 |
| Assay | ≥96.0% (HPLC) |
| Application | Starting material in the synthesis of cobalt nitrosyl porphyrins for use in the study of the binding and activation of nitric oxide.1,2 |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 417 nmλmax 530 nm (2nd) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II) used for?
+
It is primarily used as a starting material in the synthesis of cobalt nitrosyl porphyrins for research into nitric oxide binding and activation.
What are the CAS number and empirical formula for this compound?
+
The CAS number is 28903-71-1, and the empirical formula is C48H36CoN4O4.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this compound with an assay of ≥96.0% (HPLC). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling requirements for this chemical?
+
Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound is classified under WGK Germany 3, indicating a high hazard to water.
How is this product packed, shipped, and exported?
+
Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents, ensuring appropriate packaging and compliance for international shipment.
How can I request a sample or quote for 5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II)?
+
Please contact our sales team or use the online enquiry form to request a sample or a formal quotation for this product.
▶ Related products

Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis