I hope BDH don't object to me quoting from their data sheet:

BDH HAZARD DATA SHEETS                                         PAGE - 1
+------------------------------------------------------------------------+
  Product : Rhodamine B                                                  =20
                                                                         =20
                                                                         =20
+------------------------------------------------------------------------+
  CAS Number : 81-88-9             
+-----------------------------------------------------------------------+
  Product Codes : 13111-34142-     -     -     -     -     -     -      =20
                       -     -     -     -     -     -     -     -      =20
+-----------------------------------------------------------------------+
HAZARD IDENTIFICATION
 Symbols : Xn                       Phrases : R20/22                       =20
                                                   S24/25                        
TRANSPORT INFORMATION
 Hazard Class : NR      UN Number :          Pkg Group : 

COMPOSITION : Organic dye                   

REGULATORY INFORMATION : Not implemented

PHYSICAL AND CHEMICAL PROPERTIES
 Description : Green crystals or dark reddish violet powder

 Melting Pt : 165 °CBoiling Pt : n/aSpecific Gravity : n/a
 Solubility in Water : Soluble
 Vapour Pressure : n/a
 Vapour Density : n/a

FIRE AND EXPLOSION HAZARD May evolve toxic fumes in fire
 Flash Point : n/a
 Explosive Limits : n/a
 Auto-Ignition Temperature : n/a

FIREFIGHTING MEASURES Not applicable

HEALTH HAZARDS Harmful by ingestion and inhalation. Stains. May irritate eyes
               and skin.
TOXICOLOGICAL INFORMATION
 Toxicity Data : LD50 887 mg/kg oral, mouse
                   

 Carcinogenicity : Has been found to cause cancer in laboratory animals
 Mutagenicity/Teratogenicity : 
                   Evidence of mutagenic effects



>>> Tibor Ric <tibor@home.se> 09/16/00 06:27am >>>
Hi!
Does anybody knows if rhodamine dye is carcinogen? I've heard that it is. Is
it true?

If You do this staining, please could I get Your recipe?

And one more thing. Where could I find a good histological resource on the
Internet?

Thanks in advance!

Tibor Ric
Medical Laboratory Technologist (BMA)
Sweden, Karlstad