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517-28-2

517-28-2 structural image
Product Name: Hematoxylin
Formula: C16H14O6
Synonyms: H&E Stain, Gill;Hematoxylin;Hematoxylin cryst. (C.I. 75290);Natural Black 1
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Hematoxylin appears as white to yellowish crystals that redden on exposure to light. (NTP, 1992)
Melting Point 212 to 248 °F (NTP, 1992)
Solubility Slightly soluble in cold; soluble in hot (NTP, 1992)
Stability/Shelf Life TURNS RED ON EXPOSURE TO LIGHT; ITS SOLN DARKEN ON STANDING /TRIHYDRATE/
Optical Rotation SPECIFIC OPTICAL ROTATION: +11 (WATER, 3.7%); MAX ABSORPTION (0.1 N KOH): 499 NM, 534.4 NM, 565 NM, 615.5 NM
Other Experimental Properties WHITE TO YELLOWISH CRYSTALS; MP: 100-120 °C, ALSO STATED AS 140 °C; SLIGHTLY SOL IN COLD WATER, ETHER; SOL IN ALKALI HYDROXIDES, GLYCEROL, HOT WATER, HOT ALC, ALSO IN BORAX; SOL IN ALKALI HYDROXIDES, GLYCEROL /TRIHYDRATE/
Chemical Classes Dyes -> Other Dyes

SAFETY INFORMATION

Signal word Warning
Pictogram(s)

Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H319:Serious eye damage/eye irritation
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P337+P313:IF eye irritation persists: Get medical advice/attention.

COMPUTED DESCRIPTORS

Molecular Weight 302.28 g/mol
XLogP3 1.2
Hydrogen Bond Donor Count 5
Hydrogen Bond Acceptor Count 6
Rotatable Bond Count 0
Exact Mass 302.07903816 g/mol
Monoisotopic Mass 302.07903816 g/mol
Topological Polar Surface Area 110 Ų
Heavy Atom Count 22
Formal Charge 0
Complexity 444
Isotope Atom Count 0
Defined Atom Stereocenter Count 2
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Hematoxylin appears as white to yellowish crystals that redden on exposure to light. (NTP, 1992)

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