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517-28-2

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517-28-2 Usage

Uses

Different sources of media describe the Uses of 517-28-2 differently. You can refer to the following data:
1. Colorant in inks, biological stains.
2. Hematoxylin and eosin together make up Hematoxylin and eosin stain, one of the most commonly used stains in histology. Metal-haematein complexes are used to stain cell nuclei prior to examination under a microscope. Structures that stain with iron- or aluminum-haematein are often called basophilic, even though the mechanism of the staining is different from that of staining with basic dyes.

General Description

White to yellowish crystals that redden on exposure to light.

Air & Water Reactions

Soluble in hot water, slightly water soluble in cold .

Reactivity Profile

Sensitive to light. .

Hazard

May be carcinogenic.

Purification Methods

Hematoxylin recrystallises from H2O (as trihydrate) in white-yellow crystals which become red on exposure to light and then melt at 100-120o. It has been recrystallised from Me2CO/*C6H6. It has been recrystallised as well from dilute aqueous NaHSO3 until colourless and is soluble in alkali, borax and glycerol. Store it in the dark below 0o. [Morsingh & Robinson Tetrahedron 26 182 1970, Dann & Hofmann Chem Ber 98 1498 1955, Beilstein 17/8 V 469.]

Check Digit Verification of cas no

The CAS Registry Mumber 517-28-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 517-28:
(5*5)+(4*1)+(3*7)+(2*2)+(1*8)=62
62 % 10 = 2
So 517-28-2 is a valid CAS Registry Number.
InChI:InChI=1/C16H14O6/c17-10-2-1-8-13-9-4-12(19)11(18)3-7(9)5-16(13,21)6-22-15(8)14(10)20/h1-4,13,17-21H,5-6H2/t13-,16-/m1/s1

517-28-2 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • TCI America

  • (H0006)  Hematoxylin Hydrate  >97.0%(GC)

  • 517-28-2

  • 5g

  • 320.00CNY

  • Detail
  • TCI America

  • (H0006)  Hematoxylin Hydrate  >97.0%(GC)

  • 517-28-2

  • 25g

  • 970.00CNY

  • Detail
  • Alfa Aesar

  • (A12431)  Hematoxylin hydrate, 96% (dry wt.), water ca 6%   

  • 517-28-2

  • 5g

  • 319.0CNY

  • Detail
  • Alfa Aesar

  • (A12431)  Hematoxylin hydrate, 96% (dry wt.), water ca 6%   

  • 517-28-2

  • 25g

  • 841.0CNY

  • Detail
  • Alfa Aesar

  • (A12431)  Hematoxylin hydrate, 96% (dry wt.), water ca 6%   

  • 517-28-2

  • 100g

  • 2540.0CNY

  • Detail
  • Sigma

  • (H9627)  Hematoxylin  

  • 517-28-2

  • H9627-25G

  • 544.05CNY

  • Detail
  • Sigma

  • (H9627)  Hematoxylin  

  • 517-28-2

  • H9627-100G

  • 1,543.23CNY

  • Detail
  • Sigma

  • (H9627)  Hematoxylin  

  • 517-28-2

  • H9627-5X100G

  • 5,142.15CNY

  • Detail

517-28-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name (+)-haematoxylin

1.2 Other means of identification

Product number -
Other names Hematoxylin Hydrate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:517-28-2 SDS

517-28-2Synthetic route

(6aS,11bR)-7,11b-Dihydro-indeno[2,1-c]chromene-3,4,6a,9,10-pentaol; compound with GENERIC INORGANIC NEUTRAL COMPONENT

(6aS,11bR)-7,11b-Dihydro-indeno[2,1-c]chromene-3,4,6a,9,10-pentaol; compound with GENERIC INORGANIC NEUTRAL COMPONENT

Hematoxylin
517-28-2

Hematoxylin

Conditions
ConditionsYield
In hydrogenchloride at 30.1 - 60.1℃; Equilibrium constant;
Hematoxylin
517-28-2

Hematoxylin

(6aS,11bR)-7,11b-Dihydro-indeno[2,1-c]chromene-3,4,6a,9,10-pentaol; compound with GENERIC INORGANIC NEUTRAL COMPONENT

(6aS,11bR)-7,11b-Dihydro-indeno[2,1-c]chromene-3,4,6a,9,10-pentaol; compound with GENERIC INORGANIC NEUTRAL COMPONENT

Conditions
ConditionsYield
With zirconyl chloride In hydrogenchloride at 30.1 - 60.1℃; Thermodynamic data; Equilibrium constant; KA, reaction enthalpy ΔH, standard reaction entropy ΔS0;

517-28-2Upstream product

517-28-2Relevant articles and documents

The Reaction of Hematoxylin with Zirconyl Chloride Studied Spectrophotometrically

Roubani-Kalantzopoulou, Fani,Katsanos, Nicholas A.

, p. 165 - 182 (2007/10/02)

The reaction of hematoxylin with zirconyl chloride in acid solutions was studied spectrophotometrically.A strong absorption band with λmax = 525 nm is attributed to a loose complex formed between hemateine and zirconium(IV) ions.The experimental findings - especially the fact that the linear absorption coefficient increases with time, passes through a maximum and then declines exponentially - are consistent with a four step mechanism.Two of the steps are fast equilibria, while the other two are slow dissociation reactions, the second being an order of magnitude faster than the first.The rate constants for the slow steps and the equillibrium constants for the fast steps have been determined.From the variation of these constants with temperature the activation parameters of the slow reactions and thermodynamic data for the fast equilibria have been calculated.Also the molar absorption coefficient of the absorbing complex has been estimated.Possible analytical applications of the reactions studied are briefly discussed. - Keywords: Zirconyl chloride, Hematoxylin complex formation rates, Activation parameters of complexes, Thermodynamic data of complexes

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