If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
C5878
Chlorophyll b from spinach
≥90% (HPLC), ≤0.5% Chlorophyll a
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 mg | Please contact Customer Service for Availability | CZK 5,800.00 |
5 mg | Please contact Customer Service for Availability | CZK 23,000.00 |
About This Item
Quality Segment
assay
≥90% (HPLC)
form
powder
impurities
≤0.5% Chlorophyll a
mp
183-185 °C (lit.)
ε (extinction coefficient)
15.9 × 104 at 452 nm in diethyl ether (lit.), 5.61 × 104 at 644 nm in diethyl ether (lit.)
application(s)
metabolomics
vitamins, nutraceuticals, and natural products
shipped in
dry ice
storage temp.
−20°C
SMILES string
[H]C(=O)c1c(CC)c2cc3c(C)c4C(=O)[C@H](C(=O)OC)c5c6nc(cc7c(C)c(C=C)c(cc1n2)n7[Mg]n3c45)[C@@H](C)[C@@H]6CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C
InChI
1S/C55H71N4O6.Mg/c1-12-38-35(8)42-27-43-36(9)40(23-24-48(61)65-26-25-34(7)22-16-21-33(6)20-15-19-32(5)18-14-17-31(3)4)52(58-43)50-51(55(63)64-11)54(62)49-37(10)44(59-53(49)50)28-46-39(13-2)41(30-60)47(57-46)29-45(38)56-42;/h12,25,27-33,36,40,51H,1,13-24,26H2,2-11H3,(H-,56,57,58,59,60,62);/q-1;+2/p-1/b34-25+;/t32-,33-,36+,40+,51-;/m1./s1
InChI key
NSMUHPMZFPKNMZ-VBYMZDBQSA-M
General description
Application
- to perform quantitative analysis of the components of carotenoid and chlorophyll in the monovarietal virgin olive oil samples[3]
- to study the function of chlorophyll and porphyrins in the photo-oxidation of dairy products using sensory evaluation and fluorescence spectroscopy
- to analyze the limits of application of spectrophotometry and spectrofluorimetry in the determination of Chlorophyll a/b ratio
- to examine the changes in chlorophyll -a & -b content and color of grapevine leaves
Biochem/physiol Actions
Packaging
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥90% (HPLC) | assay ≥85% (HPLC) | assay ≥95.0% (HPLC) | assay - |
| form powder | form powder | form - | form lyophilized powder |
| application(s) metabolomics | application(s) - | application(s) cleaning products | application(s) cell analysis |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
| impurities ≤0.5% Chlorophyll a | impurities chlorophyll b, essentially free | impurities - | impurities - |
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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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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