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E 140

CAS:    1406-65-1
MF:    C54H69MgN4O5R+2
MW:    878.45446
EINECS:    215-800-7

Definition    
E 140, including (chlorophyll a and chlorophyll b), that are responsiblefor the green colour of mostplants. 
E 140 molecules are theprincipal sites of light absorption inthe light-dependent reactions ofphotosynthesis. 
They are magnesium-containing porphyrins, chemicallyrelated to cytochrome andhaemoglobin.
E 140 is a natural pigment of a plant-derived chlorophyll. 
The natural pigment consists of E 140 contained substances (extracted from a plant), Gum Arabic and Lactose. 
The water dispersibility of E 140 is improved by drying the mixture of these substances.
E 140 is a dark green powder and has a trace of characteristic odor. 
E 140 forms a suspension with water. 
The color of the pigment can be changed to brown under lower pH conditions (<pH 4.5). 
Keep in a dry place (and avoid dampness). 
Store in a dark place at room temperature.

E 140 Chemical and Physical Properties
Molecular Weight: 893.5    
Hydrogen Bond Donor Count: 0    
Hydrogen Bond Acceptor Count: 9    
Rotatable Bond Count: 22    
Exact Mass: 892.5353131    
Monoisotopic Mass: 892.5353131    
Topological Polar Surface Area: 114 Ų    
Heavy Atom Count: 65    
Formal Charge: 0    
Complexity: 2300    
Isotope Atom Count: 0    
Defined Atom Stereocenter Count: 0    
Undefined Atom Stereocenter Count: 5    
Defined Bond Stereocenter Count: 0    
Undefined Bond Stereocenter Count: 1    
Covalently-Bonded Unit Count: 2
Compound Is Canonicalized: Yes

Uses    
E 140 is a chlorin pigment found in cyanobacteria and the chloroplasts of algae and plants. 
E 140 is an important molecule that plays a critical role in photosynthesis. 
E 140 a is a specific form of chlorophyll used in oxygenic photosynthesis and absorbs most energy from wavelengths of violet-blue and orange-red light. 
E 140 is also involved in photosynthesis and absorbs primarily blue light. 
There are other forms of E 140 such as Chlorophyll c1, c2, c3 which are accessory pigments. 
Recently, Chlorophyll f was announced to be present in cyanobacteria and other oxygenic microorganisms that form stromatolites.
E 140 is used as a natural coloring agent. 
E 140 is credited with skin-soothing and healing properties thanks to its phytol content, and has a mild deodorizing effect. 
E 140 is the green coloring matter found in all living plants and seen in plant leaves.
E 140 is a colorant that is a green pigment present in all green plants.
E 140 is used in sausage casings, oleomargarine, and shortening.

E 140 is a green pigment found in plants, algae and some bacteria. 
E 140 is a complex chelate of magnesium containing porphyrins.
E 140 is a magnesium complex of the phytil ester of porphyrin propionic acid. 
These pigments belong to the tetrapyrrole family of organic compounds. 
Genetic and environmental differences alter the relative amounts of E 140 production and also produce leaves, ranging in color from dark green to yellow. 
E 140 is chlorophyll-a , found in oxygenevolving organisms.
The leaf chlorophyll content is related to nitrogen nutrition; therefore, the relative E 140 content can serve as an indication of the nitrogen status of the plant. 
A hand-held E 140 meter provides an indication of the leaf nitrogen status of the crop.
E 140 molecules have three functions. 
They serve as an antenna to absorb light quanta; they transmit this energy from one E 140 molecule to another by a process of 'resonance transfer' till finally the chlorophyll molecule, in close association with enzymes, undergoes chemical oxidation. 
The resulting electron of high potential is ejected from the molecule; this electron can then be made to perform biochemical work (that is, reduction of another compound). 
Thus, the energy of light quanta is converted to chemical energy.
Chlorophylls a, b, c, d and e, bacteriochlorophyll and bacterioviridin are all E 140 pigments. 
Chlorophyll-a and chlorophyll-b are abundant in higher plants. 
Chlorophyll-a contains a methyl group and chlorophyll-b contains an aldehyde group at C3atom.

Synonyms
CHLOROPHYLL
1406-65-1
Magnesium;(3R,21S,22S)-16-ethenyl-11-ethyl-3-methoxycarbonyl-12,17,21,26-tetramethyl-22-[3-oxo-3-[(E)-3,7,11,15-tetramethylhexadec-2-enoxy]propyl]-23,24,25-triaza-7-azanidahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),4,8(26),9,11,13(25),14,16,18(24),19-undecaen-4-olate
Magnesium;16-ethenyl-11-ethyl-3-methoxycarbonyl-12,17,21,26-tetramethyl-22-[3-oxo-3-(3,7,11,15-tetramethylhexadec-2-enoxy)propyl]-23,24,25-triaza-7-azanidahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1(23),2(6),4,8(26),9,11,13(25),14,16,18(24),19-undecaen-4-olate
CHLOROPHYLL, OIL SOLUBLE
Q43177
Q133878

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