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15905-32-5

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Basic Information
CAS No.: 15905-32-5
Name: ERYTHROSIN B
Article Data: 17
Molecular Structure:
Molecular Structure of 15905-32-5 (ERYTHROSIN B)
Formula: C20H8 I4 O5
Molecular Weight: 835.899
Synonyms: Fluorescein,2',4',5',7'-tetraiodo- (8CI); 2',4',5',7'-Tetraiodofluorescein;3',6'-Dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one;C.I. 45430:2; C.I. Solvent Red 140; Erythrosin J; Erythrosine J; Erythrosineacid; Iodeosin; NSC 328781; Solvent Red 140; Tetraiodofluorescein
EINECS: 240-046-0
Density: 2.93 g/cm3
Melting Point: 303 °C (dec.)(lit.)
Boiling Point: 628.3 °C at 760 mmHg
Flash Point: 333.8 °C
Solubility: spirit: soluble
Appearance: powder
Safety: 22-24/25
PSA: 75.99000
LogP: 6.08420
Related products
Synthetic route
2321-07-5

fluorescein

A

56254-06-9

2',4',5'-triiodofluorescein

B

15905-32-5

erythrosine B

Conditions
ConditionsYield
With Oxone; sodium iodide at 200℃; for 12h;A 70%
B 30%
64-17-5

ethanol

2321-07-5

fluorescein

15905-32-5

erythrosine B

Conditions
ConditionsYield
With pyridine; iodine; silver nitrate
2321-07-5

fluorescein

15905-32-5

erythrosine B

Conditions
ConditionsYield
With iodine Behandeln mit Eisessig;
With sodium hydroxide; iodine; acetic acid
With dihydrogen peroxide; sodium iodide In ethanol at 20℃; for 5h; Autoclave; Large scale;

Erythrosin

15905-32-5

erythrosine B

Conditions
ConditionsYield
With oxygen Irradiation; photo-bleaching in some polymer-films: permeability of O2, glass-transition-temp., rel. index of polarity, quantum yield of bleaching, influence of O2;
75-36-5

acetyl chloride

15905-32-5

erythrosine B

77084-69-6

erythrosin B diacetate

Conditions
ConditionsYield
With pyridine; dmap In dichloromethane for 1h;32%
6066-82-6

1-hydroxy-pyrrolidine-2,5-dione

15905-32-5

erythrosine B

erythrosin n-hydroxysulfosuccinimide

Conditions
ConditionsYield
dicyclohexyl-carbodiimide In DMF (N,N-dimethyl-formamide) at 4 - 20℃;
polycaprolactone diol terminated with 3,5-bis(acetylamino)-2,4,6-triiodobenzoic acid

polycaprolactone diol terminated with 3,5-bis(acetylamino)-2,4,6-triiodobenzoic acid

15905-32-5

erythrosine B

trifunctional lactate polymer with erythrosin

trifunctional lactate polymer with erythrosin

Conditions
ConditionsYield
dicyclohexyl-carbodiimide In benzene at 0℃; for 72h;
polyethylene glycol 1000

polyethylene glycol 1000

15905-32-5

erythrosine B

polyethylene glycol; erythrosin-terminated

polyethylene glycol; erythrosin-terminated

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In DMF (N,N-dimethyl-formamide) at 0℃; for 16h;
15905-32-5

erythrosine B

16423-68-0, 63467-67-4

2',4',5',7'-tetraiodofluorescein disodium salt

Conditions
ConditionsYield
With sodium hydroxide In water at 20℃; for 4.5h; Autoclave; Large scale;7.9 kg
15905-32-5

erythrosine B

5188-07-8

sodium thiomethoxide

C21H13I3O5S

Conditions
ConditionsYield
Stage #1: erythrosine B; sodium thiomethoxide With acetic anhydride
Stage #2: With tetrakis(triphenylphosphine) palladium(0) Further stages;
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