ChemicalBook >> CAS DataBase List >>ERYTHROSIN B


Chemical Name:
iodeosin;traiodo-;Nsc328781;cherry red;BErythrosi;IODOEOSINE;CI 45430:2;ERYTHROSIN;tetraiodo-;ERYTHROSINE
Molecular Formula:
Molecular Weight:
MDL Number:
MOL File:
MSDS File:


Melting point 303 °C (dec.)(lit.)
Boiling point 628.3±55.0 °C(Predicted)
Density 2.4391 (estimate)
storage temp. room temp
solubility spirit: soluble
form powder
pka 7.21±0.20(Predicted)
Colour Index 45430:2
color Red
Water Solubility Soluble in water, spirit, methanol, methyl cellosolve and ethanol.
EWG's Food Scores 1
EPA Substance Registry System 2',4',5',7'-Tetraiodofluorescein (15905-32-5)


Risk and Safety Statements

Safety Statements  22-24/25
WGK Germany  2
RTECS  LM5940000
HS Code  29329990
Toxicity A food color formerly approved for use in the United States and Europe. It was used primarily in jams and marmalades, maraschino cherries, pickles and relishes, etc. The LD50 in rats is 150 mg/kg, i.p., and 600 mg/kg, p.o. Erythrosine has a variety of actions in vitro due in large measure to its ability to affect biological membranes and lipophilic sites of enzymes. Such data have led to the hypothesis that erythrosine could be neurotoxic, but both clinical and preclinical data have suggested that erythrosine is not likely to be neurotoxic at doses that might be encountered. Two other toxicological issues have been raised with this food color. It has been suggested to be a potential, if weak, carcinogen, and it may also contribute to potential thyroid toxicity resulting from release of iodine.
NFPA 704
1 0

ERYTHROSIN B price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 200964 Erythrosin B Dye content ≥95 % 15905-32-5 5g $49.5 2022-05-15 Buy
Sigma-Aldrich 200964 Erythrosin B Dye content ≥95 % 15905-32-5 25g $207 2022-05-15 Buy
TCI Chemical T0124 Tetraiodofluorescein >95.0%(HPLC) 15905-32-5 25g $117 2022-04-27 Buy
Alfa Aesar J62619 Erythrosin B, spirit soluble 15905-32-5 5g $23.7 2021-12-16 Buy
Alfa Aesar J62619 Erythrosin B, spirit soluble 15905-32-5 25g $107 2021-12-16 Buy
Product number Packaging Price Buy
200964 5g $49.5 Buy
200964 25g $207 Buy
T0124 25g $117 Buy
J62619 5g $23.7 Buy
J62619 25g $107 Buy

ERYTHROSIN B Chemical Properties,Uses,Production

Chemical Properties

orange-red fine powder


Erythrosin B has been used as a dye in fluorescence lifetime imaging.


Indicator in analytical chemistry.


Erythrosin B is used as a red coloring in some foods such as cherries and fish. It is used as printing ink, dental plaque disclosing agent and biological stain. It finds application as a radiopaque medium and sensitizer for orthochromatic photographic films. It is utilized as a cake-decorating gel. In addition to this, it is used in sweets such as candies and popsicles.


Fluorescein (C.I.Acid Yellow 73, C.L 45350) in aqueous solution or Tetraiodide in ethanol, and made ??the free acid form.

Biochem/physiol Actions

Erythrosin B, also called as eosin B, is a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus.

Properties and Applications

blue light red. Soluble in water for cherry red, no fluorescence. In concentrated sulfuric acid for brown light yellow, dilution after brown light yellow precipitation. Dye aqueous solution to join sodium hydroxide have soluble precipitation. Used in cosmetics coloring.

Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO Poor Insoluble

ERYTHROSIN B Preparation Products And Raw materials

Raw materials

Preparation Products


Global( 100)Suppliers
Supplier Tel Email Country ProdList Advantage
Hubei Jusheng Technology Co.,Ltd.
86-18871470254 CHINA 28229 58
career henan chemical co
+86-0371-86658258 China 29862 58
TargetMol Chemicals Inc.
+1-781-999-5354 +1-00000000000 United States 19231 58
Hubei Ipure Biology Co., Ltd
+8618062405514 China 10352 58
86-571-88216897、88216896 13588875226 CHINA 6467 58
ShenZhen Ipure Biology import and export company co.,ltd
+86-18071025641 +86-18071025641 China 13337 58
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739 CHINA 52932 58
Alfa Chemistry
516-6625404 United States 10563 58
J & K SCIENTIFIC LTD. 010-82848833 400-666-7788 China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 18621169121 China 40310 62

View Lastest Price from ERYTHROSIN B manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2020-01-08 ERYTHROSIN B
US $2.00 / KG 1KG 98% 100g , 1kg, 5kg , 50kg Career Henan Chemical Co
  • US $2.00 / KG
  • 98%
  • Career Henan Chemical Co
2’,4’,5’,7’-tetraiodo-fluorescei 2’,4’,5’,7’-tetraiodofluorescein 3’,6’-Dihydroxy-2’,4’,5’,7’-tetraiodospiro[iso-benzofuran-1(3H),9’-[9H]xanthen]-3-onedisodiumsalt 9’-(9h)xanthen)-3-one,3’,6’-dihydroxy-2’,4’,5’,7’-spiro(isobenzofuran-1(3h 9’-[9H]xanthen]-3-one,3’,6’-dihydroxy-2’,4’,5’,7’-tetraiodo-Spiro[isobenzofuran-1(3H) erythrosineacid iodeosin Erythrosin B, spirit soluble, pure, 95% Erythrosin Free Acid erythrocin B, spirit soluble C.I. 45430:2, Solvent Red140 Erythrosin b, 95%, spirit soluble, pure 3,6-Dihydroxy-2,4,5,7-tetraiodospiro[9H-xanthene-9,1'(3'H)-isobenzofuran]-3'-one 3',6'-Dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one Erythrosin B,95%,pure,spirit soluble cherry red Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-2',4',5',7 Fluorescein, 2',4',5',7'-tetraiodo- Nsc328781 Erythrosin B, spirit soluble, pure, 95% 5GR BErythrosi Erythrosine J IODOEOSINE LABOTEST-BB LT00452775 CI 45430:2 ERYTHROSIN ERYTHROSIN B LACTONE ERYTHROSIN B, SPIRIT SOLUBLE ERYTHROSINE Spiro[isobenzofuran-1(3H),9’-[9H]xanthen]-3-one,3’,6’-dihydroxy-2’,4’,5’,7’-tetraiodo- tetraiodo- traiodo- TETRAIODOFLUORESCEIN SOLVENT RED 140 2,4,5,7-Erythrosin 3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one ERYTHROSIN B FREE ACID ERYTHROSIN B, SPIRIT SOLUBLE, 95+% ERYTHROSIN B FREE ACID CELL CULTURE*TEST ED ERYTHROSIN B (CELL CULTURE REAGENT) ErythrosinBFreeAcidC.I.45425 ErythrosineBfreeacid ERYTHROSINE B 3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one Tetraiodofluorescein > Iodoeosine Solution in Water, 100μg/mL C.I.Solvent Red 140:C.I.45430:2 15905-32-5 C20H8I4O5 C20H6I4Na2O5H2O Inhibitors Organics