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C5753

Chlorophyll a

Name: Chlorophyll a
Brand: SIGMA

from spinach

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About This Item

Empirical Formula (Hill Notation):

C₅₅H₇₂MgN₄O₅

CAS Number:

479-61-8

Molecular Weight:

893.49

UNSPSC Code:

12171506

NACRES:

NA.47

PubChem Substance ID:

24892803

EC Number:

207-536-6

Beilstein/REAXYS Number:

3586237

MDL number:

MFCD00079050

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Properties

biological source

spinach

Quality Level

200

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

Description

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.

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Photobiology: The Science of Life and Light (2007)

Lockhart and Wiseman?s Crop Husbandry Including Grassland, 985(2), 101e113-101e113 (2014)

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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