MedKoo Cat#: 127035 | Name: Eosin Y
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

Eosin Y is a dye and brominated derivative of the fluorescent compound fluorescein.

Chemical Structure

Eosin Y
Eosin Y
CAS#15086-94-9 (free acid)

Theoretical Analysis

MedKoo Cat#: 127035

Name: Eosin Y

CAS#: 15086-94-9 (free acid)

Chemical Formula: C20H8Br4O5

Exact Mass: 643.7105

Molecular Weight: 647.90

Elemental Analysis: C, 37.08; H, 1.24; Br, 49.33; O, 12.35

Price and Availability

Size Price Availability Quantity
5g USD 250.00 2 Weeks
25g USD 450.00 2 Weeks
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Synonym
AMI 5; AMI5; AMI-5; C.I. 45380:2; C.I. Solvent Red 43; Eosin Acid; NSC 244436; 2′,4′,5′,7′-Tetrabromofluorescein; Acid Red 87; Bromo acid J. TS, XL; or XX, Bromofluorescein; Bronze Bromo ES; Eosin yellowish
IUPAC/Chemical Name
2',4',5',7'-tetrabromo-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
InChi Key
DBZJJPROPLPMSN-UHFFFAOYSA-N
InChi Code
InChI=1S/C20H8Br4O5/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
SMILES Code
O=C1OC2(C3=CC(Br)=C(C(Br)=C3OC4=C(C(O)=C(C=C42)Br)Br)O)C5=C1C=CC=C5
Appearance
Solid
Purity
>97% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 -4 C for short term (days to weeks) or -20 C for long term(months to years).
Solubility
To be determined
Shelf Life
>2 years if stored properly
Drug Formulation
To be determined
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 647.90 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL