Disperse Red 13
Disperse Red 13 (CAS: 3180-81-2) is an organic compound with the formula ClC6H3(NO2)N=NC6H4N(C2H5)CH2CH2OH. Possessing a molecular weight of 348.78, this chemical functions primarily as a non-linear optical (NLO) material. Its characteristic absorption is observed at λmax 503 nm. Disperse Red 13 is utilised in specialised applications within materials science and photonics, leveraging its optical properties.
- IUPAC
- 2-[4-(2-Chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol
- Synonyms
- 2-[4-(2-Chloro-4-nitrophenylazo)-N-ethylphenylamino]ethanol

Non-Linear Optical (NLO) Materials
Disperse Red 13 is recognised for its utility as an NLO chromophore. It is employed in research and development for applications requiring materials with non-linear optical responses, particularly in photonics and optical electronics.
Materials Science
As a component in materials science, Disperse Red 13 is investigated for its unique optical and electronic characteristics. Its structure makes it suitable for integration into advanced materials for optical applications.
Organic and Printed Electronics
The compound finds relevance in the field of organic and printed electronics due to its chromophoric nature. It may be incorporated into organic electronic devices where specific light-matter interactions are desired.
| Molecular weight | 348.78 |
|---|---|
| Linear formula | ClC6H3(NO2)N=NC6H4N(C2H5)CH2CH2OH |
| Application | NLO material |
| Melting point | 122-129 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| 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.
| Colour Index Number | 11115 |
|---|---|
| Absorption | λmax 503 nm |
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 Disperse Red 13 used for?
+
Disperse Red 13 is primarily used as a Non-Linear Optical (NLO) material in applications within materials science and organic electronics.
What are the CAS number and formula for Disperse Red 13?
+
The CAS number for Disperse Red 13 is 3180-81-2, and its chemical formula is ClC6H3(NO2)N=NC6H4N(C2H5)CH2CH2OH.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Disperse Red 13 as a technical/research grade material. We do not represent it as USP, BP, EP, or pharmacopoeia grade.
How should Disperse Red 13 be handled safely?
+
Disperse Red 13 is classified with hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
How is Disperse Red 13 packed, shipped, and exported?
+
Disperse Red 13 is carefully packed to ensure product integrity during transit. Tech Serve Solutions offers global export services for this chemical, adhering to international shipping regulations.
How can I request a sample or quote for Disperse Red 13?
+
To request a sample or a quote for Disperse Red 13, please contact our sales team via the website or directly by phone. Provide your contact details and the quantity required.
▶ 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