Pigment Red 81
- CAS NO.：12224-98-5
- Empirical Formula: C28H31N2O3.xUnspecified
- Molecular Weight: 2261.98
- MDL number: MFCD00281165
- EINECS: 235-424-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is Pigment Red 81?
Definition
ChEBI: Rhodamine 6G(1+) is a cationic fluorescent dye derived from 9-phenylxanthene. It has a role as a fluorochrome. It is a xanthene dye and an organic cation.
General Description
Dark pink powder.
Air & Water Reactions
Slightly soluble in water.
Fire Hazard
Flash point data for Pigment Red 81 are not available. Pigment Red 81 is probably combustible.
Flammability and Explosibility
Not classified
Properties and Applications
|
TEST ITEMS |
SPECIFICATION |
|
APPEARANCE |
ROSE POWDER |
|
SHADE |
BLUISH |
|
HEAT RESISTANCE |
180 °C min |
|
LIGHT FASTNESS |
7 |
|
ACID RESISTANCE |
5 |
|
ALKALI RESISTANCE |
4 |
|
FASTNESS TO BLEEDING |
5 |
|
OIL ABSORPTION |
40-50% |
|
SPECIFIC SURFACE |
28 m 2 /g |
|
DENSITY |
1.60 g/cm 3 |
|
RESIDUE ON 80 MESH |
5.0% max |
|
WATER SOLUBLE |
1.0% max |
|
VOLATITE 105 °C |
1.0% max |
|
TINTING STRENGTH |
100-105 % |
Properties of Pigment Red 81
| Boiling point: | 594.02℃[at 101 325 Pa] |
| Density | 1.18[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 1g/L at 18.5℃ |
| CAS DataBase Reference | 12224-98-5(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Pigment Red 81 (12224-98-5) |
Safety information for Pigment Red 81
Computed Descriptors for Pigment Red 81
New Products
Mirtazapine Impurity C/Mirtazapine Lactam Impurity Cyclopropane-1,1-dicarboxylic acid [1]Benzothieno[2,3-c]pyridine, 1,7-dichloro-8-methyl- (S)-3-Fluoro-pyrrolidine hydrochloride Cyclobutylamine 1-Bromo-2-Methoxy-3-Nitrobenzene 3-Oxocyclobutane-1-carboxylicacid (4-Bromophenyl)(3,4-dimethoxyphenyl)methanone N-Nitroso hydroxy Cetrizine EP Impurity-A Noradrenaline EP Impurity D/Noradrenaline Methyl Ether Cetirizine EP Impurity A/Cetirizine CBHP Impurity Lantanoprost rc B Clidinium Bromide Impurity 2-chloro-7-cyclopentyl-N,N-dimethylpyrrolo [2,3-d]pyrimidine-6-carbox amide 4-amino-2-fluoro-N- methylbenzamide N-(2-chloropyrimidin-4-yl)-N,2,3- trimethyl-2H- indazol 6-amine 5-Chloro-3- Methyl -1,3-2-benzoxazol-2(3H)-one 4-Bromo-2-fluoro-N-methylbenzamide N-Boc-1,4-butanediamine 4-Dimethylamino pyridine 2-Chlorotrityl Chloride 4-Bromoaniline 5-Bromo-2-chlorobenzoic acid 1,2,3,9-Tetrahydro-4(H)-carbazol-4-oneRelated products of tetrahydrofuran
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