IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 16 ,1978,p. 233.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human No Adequate Data IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 16 ,1978,p. 233.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory. Community Right-To-Know List.

The IUPAC name of Rhodamine 6G Extra Base is [9-(2-ethoxycarbonylphenyl)-6-(ethylamino)-2,7-dimethylxanthen-3-ylidene]-ethylazanium chloride. With the CAS registry number 989-38-8, it is also named as Benzoic acid, 2-(6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl)-, ethyl ester, monohydrochloride; Basic Rhodamine Yellow. The product's categories are analytical chemistry; ion association. It is bright bluish-pink crystals or reddish purple powder which is stable and incompatible with strong oxidizing agents. When heated to decomposition this chemical emits very toxic fumes. The following are the solubility of Rhodamine 6G Extra Base: Butanol (40 g/l), Ethanol (80), Methanol (400), Propanol (15), MEG (50), DEG ( 100), TEG (100), Isopropanol (15), Ethoxyethanol (25), Methoxyethanol (50), Dipropylene glycol (30), PEG (20).

The other characteristics of this product can be summarized as: (1)#H bond acceptors: 5; (2)#H bond donors: 2; (3)#Freely Rotating Bonds: 8; (4)Rotatable Bond Count: 7; (5)Tautomer Count: 2; (6)Exact Mass: 478.202321; (7)MonoIsotopic Mass: 478.202321; (8)Topological Polar Surface Area: 61.5; (9)Heavy Atom Count: 34; (10)Complexity: 823.

Preparation of Rhodamine 6G Extra Base: Using p-cresol, 3-ethylamino and phthalic anhydride as raw materials. First, condensating the two raw materials, and then esterification with ethanol to get the product. 

Uses of Rhodamine 6G Extra Base: It is applied to print silk and silk fabrics directly. It also can be used for coloring of leather and paper and for the preparation of organic pigments. In addition, this chemical can react with phosphorus tungsten molybdenum to get paint of high-class ink.

When you are using this chemical, please be cautious about it as the following:
It is harmful if swallowed. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection.

People can use the following data to convert to the molecule structure. 
1. SMILES: [Cl-].CCOC(=O)c4ccccc4c1c3cc(C)c(NCC)cc3[o+]c2cc(NCC)c(C)cc12;
2. InChI: InChI=1/C28H31N2O3.ClH/c1-6-29-23-15-25-21(13-17(23)4)27(19-11-9-10-12-20(19)28(31)32-8-3)22-14-18(5)24(30-7-2)16-26(22)33-25;/h9-16,29-30H,6-8H2,1-5H3;1H/q+1;/p-1.

The following are the toxicity data which has been tested.

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	intraperitoneal	6150ug/kg (6.15mg/kg)		Toxicology Letters. Vol. 51, Pg. 35, 1990.
mouse	LDLo	oral	50mg/kg (50mg/kg)	CARDIAC: OTHER CHANGES LIVER: OTHER CHANGES BLOOD: OTHER HEMOLYSIS WITH OR WITHOUT ANEMIA	Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 7(2), Pg. 34, 1963.
rat	LDLo	oral	125mg/kg (125mg/kg)		National Toxicology Program Technical Report Series. Vol. NTP-TR-364, Pg. 1989,