CAS 17372-87-1

Eosina

Descrizione:

Eosina, con il numero CAS 17372-87-1, è un colorante sintetico appartenente alla classe dei coloranti xanteni. È utilizzato principalmente come colorante biologico in istologia e citologia, consentendo la visualizzazione delle strutture cellulari al microscopio. Eosina è caratterizzato dal suo vibrante colore rosso-rosa, che deriva dal suo sistema di doppi legami coniugati che consente una efficace assorbimento della luce. Il colorante è solubile in acqua e alcol, rendendolo versatile per varie applicazioni. Eosina è spesso utilizzato in combinazione con ematossilina nei protocolli di colorazione, dove fornisce contrasto ai nuclei colorati di blu, evidenziando il citoplasma e altri componenti cellulari. Inoltre, Eosina presenta proprietà di fluorescenza, che possono essere utilizzate nella microscopia a fluorescenza. È importante maneggiare Eosina con cura, poiché può causare irritazione al contatto con la pelle o gli occhi. In generale, Eosina è uno strumento prezioso nella ricerca biologica e nella diagnostica, aiutando nello studio della morfologia dei tessuti e delle caratteristiche cellulari.

Formula: C₂₀H₈Br₄O₅·2Na

InChI: InChI=1S/C20H8Br4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;

InChI key: InChIKey=WUMPFXDWXTYERP-UHFFFAOYSA-N

SMILES: O=C1OC2(C=3C(OC=4C2=CC(Br)=C(O)C4Br)=C(Br)C(O)=C(Br)C3)C=5C1=CC=CC5.[Na]

Sinonimi:

• 2,4,5,7-Tetrabromo-3,6-Fluorandiol
• 2,4,5,7-Tetrabromofluorescein
• Bromoeosine
• Bromofluorescein
• Certistain
• Dinatrium-2-(2,4,5,7-tetrabrom-6-oxido-3-oxoxanthen-9-yl)benzoat
• Eosine
• Shuhong
• Tetrabromofluorescein
• 11731 red
• Eosin Y
• 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthene-9-yl)benzoic acid, disodium salt
• Eosin ys
• phloxine red 20-7600
• C.I. Acid Red 87
• Bromo fluorescein
• Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 2′,4′,5′,7′-tetrabromo-3′,6′-dihydroxy-, sodium salt (1:2)
• 2,4,5,7-Tetrabromofluorescein (Sodium salt)
• Eosine YS
• benzoate, 2-(2,4,5,7-tetrabromo-6-olato-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:3)
• bromo jps
• Tetrabromofluorescein Sodium Salt
• Acid Red 87~C.I. 45380
• Sodium eosine
• 2',4',5',7'-tetrabromofluorescein disodium salt
• hidacid white bromo
• Eosin
• D & C Red No. 22
• Eosin Yellowish
• 9-(o-Carboxyphenyl)-2,4,5,7-tetrabromo-3,6-dihydroxyxanthene, sodium salt
• bromo ts
• eosine g
• 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-spiro[3H-isobenzofuran-1,9'-xanthen]-3-one disodium salt
• hidacid boiling bromo
• bromo x-100
• symuler eosin toner
• bromo 4dc
• Eosine yellowish-(YS)
• Bromofluoresceic acid
• aizen eoxine gh
• bronze bromo
• eosine yy
• eosine bpc
• Fluorescein, 2′,4′,5′,7′-tetrabromo-, disodium salt
• hidacid eosine soda salt
• bromo fl
• disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate
• Eosin Y Sodium Salt
• C.I. 45380
• fenazo eosine xg
• bromo acid
• Disodium eosin
• certiqual eosine
• eosin disodium
• Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 2′,4′,5′,7′-tetrabromo-3′,6′-dihydroxy-, disodium salt
• Acid Red 87 (C.I.)
• irgalite bronze red cl
• 2',4',5',7'-Tetrabromo-3',6'-dihydroxy-spiro[3H-isobenzofuran-1,9'-xanthen]-3-one dipotassium salt
• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',4',5',7'-tetrabromo-3',6'-dihydroxy-,disodium salt(?)
• 2,4,5,7-tetrabromo-9-o-carboxyphenyl-6-hydroxy-3-isoxanthone, disodium salt
• Eosin Y, high purity biological stain
• Acid red 87
• sodium eosinate
• 2,4,5,7-Tetrabromo-3,6-dihydroxyxanthene-9-spiro-1'-3H-isobenzofuran-3'-one disodium salt
• Eosine YSK
• D&C 22
• 11445 red
• 2,4,5,7-Tetrabromo-3,6-dihydroxyxanthene-9-spiro-1'-3H-isobenzofuran-3'-one dipotassium salt
• Bromo B

Eosin Yellow (water soluble) ACS

CAS: 17372-87-1

Formula: C₂₀H₆Br₄Na₂O₅

Colore e forma: Red with bluish tinge or Brownish red, Powder, Passes test

Peso molecolare: 691.85

Ref: SR-29391

Acid Red 87

CAS: 17372-87-1, 548-26-5

Formula: C₂₀H₆Br₄Na₂O₅

Purezza: >90.0%(E)

Colore e forma: Orange to Brown to Dark red powder to crystaline

Peso molecolare: 691.86

Ref: 3B-T0037

Field's Stain B

CAS: 17372-87-1

Thermo Scientific Chemicals Field's Stain B CAS Number: 17372-87-1

Formula: C₂₀H₆Br₄Na₂O₅

Colore e forma: Pink to red/dark red, Crystals, powder or crystalline powder

Peso molecolare: 691.86

Ref: 02-A18578

Eosin Yellowish

CAS: 17372-87-1

Eosin Yellowish noted to reduce the affinity of Mg2+-ATPase for ATP and increase the enzyme affinity for Mg2+ at concentrations of 10-50 M. At higher concentrations near 100 ?M the affinity for Mg2+-ATPase for the ion-activator has been shown to be reduced. This compound has also been reported to be

Formula: C₂₀H₆Br₄Na₂O₅

Colore e forma: Powder, Red to brown

Peso molecolare: 691.86

Ref: 02-B24535

Spiro[isobenzofuran-​1(3H)​,​9'-​[9H]​xanthen]​-​3-​one, 2',​4',​5',​7'-​tetrabromo-​3',​6'-​dihydroxy-​, sodium salt (1:2)

CAS: 17372-87-1

Formula: C₂₀H₈Br₄NaO₅

Purezza: 80%

Colore e forma: Solid

Peso molecolare: 670.8803

Ref: IN-DA00HZMG

AMI5

CAS: 17372-87-1

AMI5

Purezza: ≥60%

Peso molecolare: 691.85g/mol

Ref: 54-BUP14944

AMI5

CAS: 17372-87-1

AMI5 (Eosin Y Disodium) is a soluble acidic red dye molecule. It is commonly used as a photoredox catalyst in organic synthesis.Cost-effective and quality-assured.

Formula: C₂₀H₆Br₄Na₂O₅

Purezza: 64.47% - 89.01%

Colore e forma: Brown Solid Powder

Peso molecolare: 691.85

Ref: TM-T2178

Eosin Y disodium salt (C.I. 45380)

CAS: 17372-87-1

Formula: C₂₀H₆Br₄Na₂O₅

Purezza: ≥ 88.0%

Colore e forma: Dark red to brown powder

Peso molecolare: 691.86

Ref: 7W-GT2884

Acid Red 87

CAS: 17372-87-1

Formula: C₂₀H₆Br₄O₅Na

Colore e forma: Neat

Peso molecolare: 691.85

Ref: 04-C10028840

Eosin

CAS: 17372-87-1

Formula: C₂₀H₆Br₄Na₂O₅

Peso molecolare: 691.86

Ref: 4Z-D-164048

Red No.230(1) for TLC RS

CAS: 17372-87-1

Colore e forma: Yellow-Brown To Red-Brown Solid Grains Or Powder

Ref: 2K-4015000021

Red No.230(2) for TLC RS

CAS: 17372-87-1

Colore e forma: Yellow-Brown To Red-Brown Solid Grains Or Powder

Ref: 2K-4016000021

Eosin Y disodium salt

CAS: 17372-87-1

Eosin Y, a red xanthene dye, has been noted to reduce the affinity of Mg2+-ATPase for ATP and increase the enzyme affinity for Mg2+ at concentrations of 10-50 μM. At higher concentrations near 100 μM the affinity for Mg2+-ATPase for the ion-activator has been shown to be reduced. This compound has also been reported to be a photosensitizer that works as a molecular photoelectrode via catalyzation of the visible-light-driven electron-transfer reaction. Eosin Y has been used to stain structures such as muscle, cytoplasm, and collagen. This agent also enhances fluorescent quenching abilities by forming a complex with polyvinulpyrrolidone.

Formula: C₂₀H₆Br₄Na₂O₅

Purezza: Min. 95%

Colore e forma: Brown Powder

Peso molecolare: 691.85 g/mol

Ref: 3D-FE01492

Eosin Y Chembeads (0.03μmol/mg)

CAS: 17372-87-1

Purezza: 95%

Peso molecolare: 687.67

Ref: 10-F556433

Eosin Yellow (water soluble) for cell culture, Endotoxin (BET) 1EU/mg

CAS: 17372-87-1

Formula: C₂₀H₆Br₄Na₂O₅

Colore e forma: Brownish red, Powder

Peso molecolare: 691.85

Ref: SR-81614