Hematoxylin Certified for Microscopy, 80+% Dye Content (CI 75290) [517-28-2]

Hematoxylin is a dye for the specific staining of DNA in the nuclei. It is used in cytology and histology. Nuclei are stained blue, dark violet to black. Hematoxylins are mixed with trivalent positively charged metal salts and build up the so-called hematoxylin lakes, used for the selective staining of nuclei (DNA). Certistain is the product group for seleceted high quality dyes that fulfill all quality requirements for IVD.

Synonyms:
Natural black 1; CI 75290; (6aS,11bR)-7,11b-Dihydrobenz[b]indeno[1,2-d]pyran-3,4,6a,9,10(6H)-pentol; (+)-Hematoxylin; Haematoxylin; Hematoxylin; Hematoxyline; Hydroxybrasilin; Hydroxybrazilin; NSC 270085; (6aS-cis)-7,11b-Dihydro-benz[b]indeno[1,2-d]pyran-3,4,6a,9,10(6H)-pentol; (6aS, 11bR) -7, 11b- Dihydro- benz[b] indeno[1, 2- d] pyran- 3, 4, 6a, 9, 10(6H) pentol

CAS No:
517-28-2

Molecular Formula:
C16H14O6

Molecular Weight:
302.29

Appearance:
Fine, Beige to tan to light brown powder

Dye Content:
≥80%

Visual Transition Interval:
5.0-7.2, yellow to violet

Melting Point:
>200°C (dec.)

Solubility:
Alcohol: To pass test

Water (KF):
≤8%

UV Ratios:
Peak 524 ± 2nm, ratio 1 ± 0.5 at 509/539nm Density at peak 0.474 ± 0.5au

Storage and Stability:
May be stored at RT. Light sensitive, amberv vial.