RHODAMINE B

PRODUCT IDENTIFICATION

CAS NO.

81-88-9

RHODAMINE BS

EINECS NO. 201-383-9
FORMULA C28H31ClN2O3
MOL WT. 479.02
H.S. CODE 3204.13.8000
TOXICITY  
UN NO.

 

SYNONYMS C.I. Basic Violet 10; C.I. 45170;
Tetraethylrhodamine,hydrochloride; 9-(2-carboxyphenyl)-3,6-bis(diethylamino) xanthylium chloride; N-[9-(2-carboxyphenyl)-6-(diethylamino)- 3H-xanthen-3- ylidene]- N-ethyl- Ethanaminium chloride; [9-(o-carboxyphenyl)-6-(diethylamino)- 3H-xanthen-3- ylidene]diethyl-Ammonium chloride; C.I. Food Red 15; (9-(o-Carboxyphenyl)-6-(diethyl amino)-3H- xanthen-3-ylidene) diethylammonium chloride;
SMILES c1(c2c(oc3c1ccc(\c3)=[N+](/CC)CC)cc(N(CC)CC)cc2)c1c(cccc1) C(O)=O.[ClH-]

CLASSIFICATION

Dye, Stain

EXTRA NOTES

Overall Carcinogenic Evaluation: Group 3

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE red to violet powder
MELTING POINT 210 - 211 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY > 1.0
SOLUBILITY IN WATER Soluble
SOLVENT SOLUBILITY Slightly soluble in HCl and NaOH soluble in alcohol
log Pow 1.95 (Octanol-water)
VAPOR PRESSURE 1.89E-19 (mmHg at 25 C)
OH RATE CONSTANT 2.37E-10 (cm3/molecule-sec at 25 C Atmospheric )
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 1 Flammability: 0 Reactivity: 0
FLASH POINT

 

STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Material Safety Data Sheet

Google Scholar Search

http://stainsfile.info/
Rhodamine B is an amphoteric dye, although usually listed as basic as it has an overall positive charge. It is most commonly used as a fluorochrome, an example being in mixture with auramine O to demonstrate acid fast organisms.

Local: Basic dyes are salts of the colored organic bases containing amino and imino groups and also combined with a colorless acid, such as hydrochloric or sulfuric. They are brilliant and most fluorescent among all synthetic dyes but have poor light and wash fastness. Cotton dyes having higher fastness properties replace in dyeing cotton for them. Basic dyes are cationic which has positive electrical charge and are used for anionic fabrics which are negative-charge-bearing, such as wool, silk, nylon, and acrylics where bright dying is the prime consideration.

BIOLOGICAL STAINS, INDICATORS

SALES SPECIFICATION

APPEARANCE

red to violet powder
CONTENT

95.0% min

TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS Not regulated
UN NO.  
SAFETY INFORMATION
Hazard Symbols: XN, Risk Phrases: 22/40, Safety Phrases: 36/37/45
PRICE INFORMATION