Basic Rhodamine (CAS 81-88-9) — formula C28H31N2O3.Cl, molecular weight 479.0; category organic chemicals.
Basic Rhodamine (CAS 81-88-9) is a chemical raw material in the organic chemicals category. Its molecular formula C28H31N2O3.Cl comprises 28 C, 31 H, 2 N, 3 O, 1 Cl atoms. Its molecular weight is about 479.0. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 81-88-9 |
|---|---|
| Molecular Formula | C28H31N2O3.Cl |
| Molecular Weight | 479.0 |
| Applications | paper dye, a metal chelating agent, and an additive to drugs and cosmetics, Rhodamine dyes (aminoxanthenes) are xanthene dyes that are very important commercially. They are brilliant, blue-red, fluorescent dyes used as colorants in inks |
| Category | Organic Chemicals |
Documented applications: paper dye, a metal chelating agent, and an additive to drugs and cosmetics, Rhodamine dyes (aminoxanthenes) are xanthene dyes that are very important commercially. They are brilliant, blue-red, fluorescent dyes used as colorants in inks.
Basic Rhodamine is a carbon-based organic compound with CAS registry number 81-88-9 and molecular formula C28H31N2O3.Cl (molecular weight 479.0), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 81-88-9
Its molecular formula C28H31N2O3.Cl comprises 28 C, 31 H, 2 N, 3 O, 1 Cl atoms.
Also known as: Basic Rhodamine · 罗丹明B · ethanaminium, N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethyl- · Rhodamine B
Category: organic chemicals
The CAS registry number of Basic Rhodamine is 81-88-9.
Molecular formula C28H31N2O3.Cl, molecular weight 479.0.
It is also registered under: Basic Rhodamine, 罗丹明B, ethanaminium, N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethyl-, Rhodamine B.
Recorded applications: paper dye, a metal chelating agent, and an additive to drugs and cosmetics, Rhodamine dyes (aminoxanthenes) are xanthene dyes that are very important commercially. They are brilliant, blue-red, fluorescent dyes used as colorants in inks.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Basic Rhodamine (CAS 81-88-9), compiled from public chemistry databases.
| CAS Registry Number | 81-88-9 |
|---|---|
| PubChem CID | 6694 |
| Molecular formula | C28H31N2O3.Cl |
| IUPAC name | [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium chloride |
| UNII (FDA) | K7G5SCF8IL |
| Molecular Weight | 479.0 |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 7 |
| Exact Mass | 478.2023205 |
| Monoisotopic Mass | 478.2023205 |
| Topological Polar Surface Area | 52.8 |
| Heavy Atom Count | 34 |
| Other Experimental Properties | 165 °C (anhydrous) |
|---|---|
| Color Additive Status | 81.10 |
| Color Additive Status | 81.30 |
RHODAMINE B; 81-88-9; Basic Violet 10; Brilliant Pink B; Tetraethylrhodamine; Rhodamine B chloride; Calcozine Red BX; Symulex Magenta F; Rhodamine; Rhodamine O; Rheonine B; Rhodamine FB; Geranium lake N; Rhodamine BA; Rhodamine BF; Rhodamine BL
| Regulatory & Food Contact | COLOUR: Food Additives CI FOOD RED 15 NMRS 38/TRS 309-JECFA 8/24 D AND C RED No. 19 |
|---|---|
| GHS notification summary | 0.9% (22 / 2557) |
| GHS notification summary | 0.9% (22 / 2557) |
|---|---|
| Reported hazard statements | H302 (13.6%), H318 (98.2%), H412 (93.9%), H335 |
This chemical does not meet GHS hazard criteria for 0.9% (22 of 2557) of reports.
H302 (13.6%): Harmful if swallowed [Warning Acute toxicity, oral]
Rhodamine B · CAS 81-88-9 · C28H31N2O3.Cl. UNII K7G5SCF8IL. Other Experimental Properties: 165 °C (anhydrous); Color Additive Status: 81.10; Color Additive Status: 81.30.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.