Rhodamine B
Also known as: Basic Violet 10, C.I. Basic Violet 10, Tetraethyl rhodamine, Rhodamine 610, Brilliant pink B, Brilliant Rhodamine B, Acid Rhodamine B, Rhodamine O, C.I. Food Red 15, Pilot578, D and C Red No. 19, 9-(2-carboxyphenyl)-3,6-bis(diethylamino)xanthylium chloride, [9-(o-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]diethylammonium chloride
Rhodamine B (CAS 81-88-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C28H31ClN2O3 and a molecular weight of 479.010 g/mol. Key properties include a melting point of 210-211 (dec.)(lit.), a density of 0.79 g/mL at 20 °C and a flash point of 12 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H318 — Causes serious eye damage and H412 — Harmful to aquatic life with long lasting effects. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 81-88-9
- Jingsj CID
- J-1959615-7
- Molecular Formula
- C28H31ClN2O3
- Molecular Weight
- 479.010 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 210-211 (dec.)(lit.) |
|---|---|
| Density | 0.79 g/mL at 20 °C |
| Flash Point | 12 °C |
| Exact Mass | 478.202332 |
| PSA | 56.69000 |
| LogP | 2.56500 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H318 — Causes serious eye damage
- H412 — Harmful to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Tan D, et al. Rhodamine B induces long nucleoplasmic bridges and other nuclear anomalies in Allium cepa root tip cells. Environ Sci Pollut Res Int. 2014 Mar;21(5):3363-70. |
|---|
Customs & Trade Information
| HS Code | 2922299090 |
|---|---|
| Summary | 2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Rhodamine B?
The CAS number of Rhodamine B is 81-88-9.
What are the molecular formula and molecular weight of Rhodamine B?
Rhodamine B has molecular formula C28H31ClN2O3 and molecular weight 479.010 g/mol.
Which suppliers offer Rhodamine B?
1 supplier(s) listed; request a quote for pricing.
Is Rhodamine B hazardous?
Rhodamine B has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H318 — Causes serious eye damage; H412 — Harmful to aquatic life with long lasting effects.
What are the upstream and downstream products of Rhodamine B?
For Rhodamine B, Upstream Products: Rhodamine B hydrazide; Downstream Products: CRYSTAL VIOLET, Solvent Red 49, Glycolic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Rhodamine B (CAS 81-88-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1959615-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.