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Eosin B

Eosin B structure

CAS No:
548-24-3
Formula:
C20H8Br2N2O9.2Na
Chemical Name:
Eosin B
Synonyms:
Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,4′,5′-dibromo-3′,6′-dihydroxy-2′,7′-dinitro-,sodium salt (1:2);Fluorescein,4′,5′-dibromo-2′,7′-dinitro-,disodium salt;Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one,4′,5′-dibromo-3′,6′-dihydroxy-2′,7′-dinitro-,disodium salt;C.I. 45400;Dibromodinitrofluorescein sodium;Saffrosine;C.I. Acid Red 91;Eosine BNX;Eosin B;Eosine I Bluish;Eosine B;Eosine BA;Eosin BA;Eosine BN;Simacid Nitro Eosin 24669;Eosin scarlet;Eosine Scarlet;Acid Red 91;134829-78-0;658700-92-6;163515-69-3
Categories:
Biochemical Engineering > Biochemical Reagents

Description

odourless green to reddish-brown solid

Eosin b is an organic sodium salt which is the disodium salt of eosin b diphenol. It has a role as a fluorescent dye and a histological dye. It contains an eosin b(2-).|A red fluorescein dye used as a histologic stain. It may be cytotoxic, mutagenic, and inhibit certain mitochondrial functions.

Eosin B Basic Attributes

Molecular Weight：

624.06

Exact Mass：

621.823547

EC Number：

208-943-1

UNII：

OMS4XQD1T0

HScode：

32041200

Characteristics

PSA：

185.04000

XLogP3：

5.45990

Appearance：

Very dark purple-red to dark brown Solid

Melting Point：

275 °C (dec.)(lit.)

Boiling Point：

694.1ºC at 760 mmHg

Flash Point：

373.6ºC

Water Solubility：

soluble in water (390 g/L at 20°C), and ethanol.

Storage Conditions：

Store at +5°C to +30°C.

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

safety instructions：

22-24/25

Marks：

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents.

GHS Classification：

|Danger|H318 (100%): Causes serious eye damage [Danger Serious eye damage/eye irritation]|P280, P305+P351+P338, and P310|Aggregated GHS information provided by 4 companies from 2 notifications to the ECHA C&L Inventory.

Drug Information

MeSH：

Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. (See all compounds classified as Fluorescent Dyes.)

MeSH Entry Terms：

Bluish, Eosine

Eosin B Use and Manufacturing

Dyeing wool, cotton, and paper.In histology as a stain for epithelia, muscular fibers, nuclei, etc.

Computed Properties

Molecular Weight:624.1
Hydrogen Bond Acceptor Count:9
Exact Mass:623.82149
Monoisotopic Mass:621.82354
Topological Polar Surface Area:173
Heavy Atom Count:35
Complexity:804
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

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Eosin B

CAS No.: 548-24-3

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Guide of Eosin B

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
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