Pararosaniline
Also known as: Basic Red 9 (free base), CI 42500, Parafuchsin, Magenta O, Pararosaniline base, Rosaniline base
Pararosaniline (CAS 25620-78-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C19H19N3O and a molecular weight of 305.37400 g/mol. Key properties include a melting point of 205ºC, a boiling point of 598.9ºC at 760 mmHg, a density of 1.287g/cm3 and a flash point of 316ºC. It is listed by 1 supplier, from 20.17 to 42.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 25620-78-4
- Jingsj CID
- J-1377145-8
- Molecular Formula
- C19H19N3O
- Molecular Weight
- 305.37400 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 250g | ¥5,043.00 | $3.02 /gBest ¥20.17/g CNY | CN China MOQ 250g | |
In Stock | 98% 50g | ¥1,496.00 | $4.48 /g ¥29.92/g CNY | CN China MOQ 50g | |
In Stock | 98% 10g | ¥420.00 | $6.29 /g ¥42.00/g CNY | CN China MOQ 10g |
Physicochemical Properties
| Melting Point | 205ºC |
|---|---|
| Boiling Point | 598.9ºC at 760 mmHg |
| Density | 1.287g/cm3 |
| Flash Point | 316ºC |
| Exact Mass | 305.15300 |
| PSA | 98.29000 |
| LogP | 4.46100 |
| Vapor Pressure | 3.41E-15mmHg at 25°C |
| Refractive Index | 1.721 |
Frequently Asked Questions
What is the CAS number of Pararosaniline?
The CAS number of Pararosaniline is 25620-78-4.
What are the molecular formula and molecular weight of Pararosaniline?
Pararosaniline has molecular formula C19H19N3O and molecular weight 305.37400 g/mol.
Which suppliers offer Pararosaniline?
1 supplier(s) listed; reference unit price ¥20.17–42.00 /g.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pararosaniline (CAS 25620-78-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377145-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.