Merck
CN

C6144

Sigma-Aldrich

叶绿素a

from Anacystis nidulans algae

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别名:
Pheophytin; universal photosynthetic pigment
经验公式(希尔记法):
C55H72MgN4O5
CAS号:
分子量:
893.49
Beilstein:
3586237
EC 号:
MDL编号:
PubChem化学物质编号:

生物来源

Anacystis nidulans algae

形式

powder

杂质

chlorophyll b, free

颜色

blue to very dark blue

mp

150-153 °C

溶解性

diethyl ether: 0.1 mg/10 mL

ε (消光系数)

11.1-12.1 × 104 at 428-430 nm in diethyl ether
8.3-9.4 × 104 at 660-662 nm in diethyl ether

application(s)

diagnostic assay manufacturing
hematology
histology

储存温度

−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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应用

已有研究描述了天然捕光色素蛋白复合体IIb(LHCIIb)的收集方法。
叶绿素a已被用作荧光计校准的标准品。

生化/生理作用

叶绿素a是含氧光合作用中的必需色素。在光系统中,它作为天线色素以及在反应中心I和II中存在。叶绿素a是一种蓝绿色色素,可吸收400-450nm和640-660nm范围内的光。在光合作用中,叶绿素吸收的能量可将二氧化碳和水转化为碳水化合物和氧气。当叶绿素吸收光能时,叶绿素中的电子可从较低能态激发至较高能态。在这种较高能量状态下,电子更容易转移到另一个分子。该过程开始了一系列电子转移步骤,直至电子转移到二氧化碳结束。

包装

密封安瓿包装。
无底玻璃瓶。内含物装在插入的融合锥内。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


分析证书(COA)

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示例

T1503
货号
-
25G
包装规格/数量

其它示例:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

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索取COA

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Is Product C6144, Chlorophyll a, soluble in solvents other than diethyl ether?

    This product is soluble in ethanol (10 micrograms/mL). It is also freely soluble in acetone, benzene, and chloroform, but is not soluble in water. However, its spectral characteristics are most well characterized for solutions in diethyl ether.

  6. Can Product C6144, Chlorophyll a, be used as an analytical standard?

    We do not recommend using this product as a standard. The fill weights of 1 mg and 5 mg are minimum values and are not guaranteed to a specific precision. Also, the product is not traceable to a consensus standard reference material.

  7. What is the purity of Product C6144, Chlorophyll a, as determined by chromatographic analysis (e.g., by HPLC)?

    We do not determine the purity of Product No. C6144 by chromatographic means. We offer an HPLC tested Chlorophyll a (isolated from spinach) as Product no. C5753.

  8. How does chlorophyll a from blue green algae differ from that found in plants?

    A complete analysis of chlorophyll a between species would require extensive study. We can say that the CAS number of this product is the same as that for chlorophyll a from spinach, a typical green plant.

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Cell Biology (2004)
Assessment of phytoplankton class abundance using in vivo synchronous fluorescence spectra.
Li H, et al.
Analytical Biochemistry, 377, 40-40 (2008)
Natural iron enrichment around the Antarctic Peninsula in the Southern Ocean.
Biogeosciences (Online), 7, 11-25 (2010)
Bjorn LO
Photobiology: The Science of Life and Light (2007)
Elham Kamyab et al.
Marine drugs, 18(4) (2020-04-05)
Sea cucumbers are bottom dwelling invertebrates, which are mostly found on subtropical and tropical sea grass beds, sandy reef flats, or reef slopes. Although constantly exposed to fouling communities in these habitats, many species are surprisingly free of invertebrate epibionts

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