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Merck

C5753

Sigma-Aldrich

Chlorophyll a

from spinach

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About This Item

Fórmula empírica (notación de Hill):
C55H72MgN4O5
Número de CAS:
Peso molecular:
893.49
Beilstein/REAXYS Number:
3586237
EC Number:
MDL number:
UNSPSC Code:
12171506
PubChem Substance ID:
NACRES:
NA.47

biological source

spinach

assay

≥85% (HPLC)

form

powder

impurities

chlorophyll b, essentially free

ε (extinction coefficient)

10.6-11.8 × 104 at 428 nm in diethyl ether (vs. 11.17 × 104, lit.)
8.2-9.1 × 104 at 662 nm in diethyl ether (vs. 8.63 × 104, lit.)

shipped in

dry ice

storage temp.

−20°C

SMILES string

CCc1c(C)c2cc3c(C=C)c(C)c4cc5nc([C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@@H]5C)c6[C@@H](C(=O)OC)C(=O)c7c(C)c(cc1n2)n([Mg]n34)c67

InChI

1S/C55H73N4O5.Mg/c1-13-39-35(8)42-28-44-37(10)41(24-25-48(60)64-27-26-34(7)23-17-22-33(6)21-16-20-32(5)19-15-18-31(3)4)52(58-44)50-51(55(62)63-12)54(61)49-38(11)45(59-53(49)50)30-47-40(14-2)36(9)43(57-47)29-46(39)56-42;/h13,26,28-33,37,41,51H,1,14-25,27H2,2-12H3,(H-,56,57,58,59,61);/q-1;+2/p-1/b34-26+;/t32-,33-,37+,41+,51-;/m1./s1

InChI key

ATNHDLDRLWWWCB-AENOIHSZSA-M

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General description

Chlorophyll a is an important light-harvesting, green or blue color pigment present in the photosynthetic membranes of the chloroplasts in plant cells. It functions as an antenna pigment in photosystems I and II.

Application

A procedure has been described for harvesting native light-harvesting complex IIb (LHCIIb).
Chlorophyll a has been used:
  • to study the variation in carotenoids composition with changing colors and maturation in soybean seeds
  • to examine the use of chlorophyll distribution maps obtained from hyperspectral imaging for the non-destructive diagnosis of Nitrogen deficiency
  • as a standard to determine the concentration of the analyte by fluorescence spectrophotometric technique in the water sample collected from the yellow river
  • as a standard to quantify the amount of chlorophyllous pigments gathered from algae by high performance liquid chromatographic (HPLC) technique
  • in the identification of pheophytin a from environmentally friendly cultivated green peppers
  • to sense different nitric oxide (NO) species

Biochem/physiol Actions

Chlorophyll a binds to the protein molecules CP47 and CP43, forming the inner antenna of the reaction center of Photosystem II. In photosystem I, the binding sites of chlorophyll a includes the polypeptides spread across the membranes. Scarcity in formation of chlorophyll and a low chlorophyll density can lead to deficiency of nitrogen in plants leaves.

Packaging

Sealed ampule.

related product

Referencia del producto
Descripción
Precios

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Los clientes también vieron

Photobiology: The Science of Life and Light (2007)
The determination of algal chlorophyllous pigments by high performance liquid chromatography and spectrophotometry
Sartory DP
Water Research, 19(5), 605-610 (1985)
Lockhart and Wiseman?s Crop Husbandry Including Grassland, 985(2), 101e113-101e113 (2014)
Nondestructive diagnostics of nitrogen deficiency by cucumber leaf chlorophyll distribution map based on near infrared hyperspectral imaging
Ji-Yong S, et al.
Sci. Hortic., 138, 190-197 (2012)
Carotenoid components in soybean seeds varying with seed color and maturation stage
Monma M, et al.
Bioscience, Biotechnology, and Biochemistry, 58(5), 926-930 (1994)

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