Aluminum 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine hydroxide
Aluminum 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine hydroxide (CAS: 128897-67-6; C56H33AlN8O5; MW: 924.89) is a specialized phthalocyanine dye known for its unique optical properties. Primarily utilized as an infrared (IR) dye, it finds applications in materials science, organic electronics, and photonic materials research. This compound absorbs light strongly in the red-visible spectrum, making it valuable for advanced optical and electronic applications.
- Synonyms
- 23-tetraphenoxy-29H,31H-phthalocyanine hydroxide, C56H33AlN8O5

Infrared (IR) Dyes
This phthalocyanine derivative functions as an effective infrared dye, absorbing light in the IR region of the spectrum. Its properties are leveraged in applications requiring specific light absorption characteristics.
Materials Science
Utilized in advanced materials research, this compound contributes to the development of novel materials with tailored optical and electronic functionalities. Its structure allows for integration into various material matrices.
Organic and Printed Electronics
The electronic properties of this phthalocyanine make it a candidate for use in organic electronic devices. It may be employed in research related to organic semiconductors and optoelectronic components.
Photonic and Optical Materials
Its strong absorption characteristics in the visible spectrum make it suitable for applications in photonic and optical materials. It is used in research exploring light-matter interactions and optical phenomena.
| Molecular weight | 924.89 |
|---|---|
| Empirical formula | C56H33AlN8O5 |
| Composition | Dye content, 90% |
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | λmax 681 nmλmax 686 nm (secondary) |
|---|
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 Aluminum 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine hydroxide used for?
+
This compound is primarily used as an Infrared (IR) dye in materials science, organic and printed electronics, and photonic and optical materials research.
What are the CAS number and formula for this chemical?
+
The CAS number is 128897-67-6 and the empirical formula is C56H33AlN8O5.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this product with a dye content of 90%. It is not represented as USP, BP, EP, or any pharmacopoeia grade.
How should this chemical be handled?
+
This compound is classified as an irritant (Xi) and may cause irritation to the eyes, respiratory system, and skin (R36/37/38). Handle with appropriate personal protective equipment, including in a well-ventilated area (S36), and seek medical attention if contact occurs (S26).
Is this product available for export?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a quote or sample?
+
Please contact our sales team to request a quote or sample of Aluminum 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine hydroxide.
▶ Related products

Poly(3-hexylthiophene-2,5-diyl)
Organic & Printed Electronics
![[6,6]-Phenyl C71 butyric acid methyl ester, mixture of isomers — chemical structure, CAS 609771-63-3; Organic & Printed Electronics, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F609771-63-3.png&w=3840&q=75)
[6,6]-Phenyl C71 butyric acid methyl ester, mixture of isomers
Organic & Printed Electronics

6,13-Bis(triisopropylsilylethynyl)pentacene
Organic & Printed Electronics
![[6,6]-Phenyl C61 butyric acid methyl ester — chemical structure, CAS 160848-22-6; Organic & Printed Electronics, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F160848-22-6.png&w=3840&q=75)
[6,6]-Phenyl C61 butyric acid methyl ester
Organic & Printed Electronics

Fullerene-C60
C60
Organic & Printed Electronics
Cholesteryl hemisuccinate
C31H50O4
Organic & Printed Electronics
3,4-Ethylenedioxythiophene
Organic & Printed Electronics

Di-tetrabutylammonium cis-bis(isothiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato)ruthenium(II)
Organic & Printed Electronics
▶ 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