File:Carmine.svg · Wikimedia Commons · See Wikimedia Commons
carmine
Sign in to saveAlso known as crimson lake, cochineal, natural red 4, red food coloring
Carmine ()also called cochineal (when it is extracted from the cochineal insect), cochineal extract, crimson lake, or carmine lake is a pigment of a bright-red color obtained from the aluminium complex derived from carminic acid. Specific code names for the pigment include natural red 4, C.I. 75470, or E120. Carmine is also a general term for a particularly deep-red color.
OverviewAI-generated
Carmine is a chemical compound with the formula C₂₂H₂₀O₁₃. Its IUPAC name is 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid. The substance has a mass of 492.0903907 and a weight of 492.4. It possesses a charge of 0, an xlogp of 0.5, and a topological polar surface area of 243.
The molecule contains nine hydrogen bond donors and thirteen hydrogen bond acceptors. It is referenced by 430 other encyclopedia articles. A search for carmine in PubMed yields a count of 4477 entries.
Synthesized by Vinony from 17 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Chemical data
- Formula
- C22H20O13
- Molecular weight
- 492.4 g/mol
- IUPAC name
- 3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid
- SMILES
- CC1=C2C(=CC(=C1C(=O)O)O)C(=O)C3=C(C2=O)C(=C(C(=C3O)O)C4C(C(C(C(O4)CO)O)O)O)O
- InChIKey
- DGQLVPJVXFOQEV-UHFFFAOYSA-N
- XLogP
- 0.5
- Polar surface area
- 243 Ų
- H-bond donors
- 9
- H-bond acceptors
- 13
- Formal charge
- 0
via PubChem
Research
4,477 papers- Indigo Carmine: Between Necessity and Concern.Journal of xenobiotics · 2023
- Carmine allergy in urticaria patients.Postepy dermatologii i alergologii · 2022
- Indigo carmine dye for detecting urinary track damage during vaginal surgery.European journal of obstetrics, gynecology, and reproductive biology · 2024
- Carmine dye.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2000
- [Asthma and allergy due to carmine dye].Anales del sistema sanitario de Navarra · 2003
via PubMed
~12 min read
Encyclopedic overview
24 sectionsContents
- Etymology
- History
- Production
- Preparation
- Identification and characteristics
- Wavelength
- Hue
- Translucence
- Value
- Permanence
- Notable occurrences in art
- Other uses
- Cartography
- Cosmetics
- Histology
- Medicine
- Regulations for use in foods
- United States
- European Union
- See also
- References
- Sources
- Further reading
- External links
Carmine ()also called cochineal (when it is extracted from the cochineal insect), cochineal extract, crimson lake, or carmine lake is a pigment of a bright-red color obtained from the aluminium complex derived from carminic acid. Specific code names for the pigment include natural red 4, C.I. 75470, or E120. Carmine is also a general term for a particularly deep-red color.
== Etymology == thumb|A cluster of Dactylopius coccus (cochineal scale) females growing in Barlovento, [[Canary Islands]]
Excerpted from Wikipedia’s “carmine” article, available under the CC BY-SA 4.0 licence.