Haematoxylin is a natural dye derived from the logwood tree, used as a histological stain in microscopy to color cell nuclei blue or purple, allowing for clear visualization of their structure. It binds to DNA and RNA, providing contrast in tissue samples. Haematoxylin is often used in combination with eosin, creating the popular staining method known as H&E (haematoxylin and eosin), which helps differentiate various tissue components based on their coloration. This staining technique is widely used in pathology and biomedical research to examine tissue morphology and diagnose diseases.
1621-46-1
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Basic information
- Product Name: haematoxylin
- Synonyms:
- CAS NO:1621-46-1
- Molecular Formula:
- Molecular Weight: 302.284
- EINECS: N/A
- Product Categories: N/A
- Mol File: 1621-46-1.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: haematoxylin(CAS DataBase Reference)
- NIST Chemistry Reference: haematoxylin(1621-46-1)
- EPA Substance Registry System: haematoxylin(1621-46-1)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 1621-46-1(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 1621-46-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,2 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.Calculate Digit Verification of CAS Registry Number 1621-46:
(6*1)+(5*6)+(4*2)+(3*1)+(2*4)+(1*6)=61
61 % 10 = 1
So 1621-46-1 is a valid CAS Registry Number.
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haematoxylin
