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
Fortfahren mit
C5753
Chlorophyll a
from spinach
Größe auswählen
| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 201.00 |
5 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 794.00 |
10 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 1’210.00 |
Über diesen Artikel
biological source
spinach
Quality Segment
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
General description
Application
- zur Untersuchung der Veränderung der Carotinoid-Zusammensetzung bei Sojabohnensamen mit wechselnder Farbe und Reifung
- zur Untersuchung der Verwendung von Chlorophyllverteilungskarten aus der Hyperspektralbildgebung für die zerstörungsfreie Diagnose von Stickstoffmangel
- als Standard zur Bestimmung der Konzentration des Analyten mittels Fluoreszenzspektroskopie in der Wasserprobe aus dem gelben Fluss
- als Standard zur Quantifizierung der Menge von aus Algen gewonnenen Chlorophyllpigmenten mittels Hochleistungsflüssigkeitschromatographie (HPLC)
- bei der Identifizierung von Phäophytin a aus umweltfreundlich angebautem grünem Paprika
- zur Erkennung verschiedener Stickstoffoxid-Spezies (NO-Spezies)
Biochem/physiol Actions
Packaging
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| form powder | form powder | form - | form - |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level - |
| shipped in dry ice | shipped in - | shipped in - | shipped in - |
| assay ≥85% (HPLC) | assay - | assay ≥95.0% (HPLC) | assay - |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
| impurities chlorophyll b, essentially free | impurities chlorophyll b, free | impurities - | impurities - |
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Lagerklasse
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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Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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Is my ampule intact? How can I tell?
1 answer-
If the meniscus "bubble" is not broken, then the ampule is intact and usable. To test the meniscus, use a glass Pasteur pipet and gently touch the bubble. If the glass pops and breaks, then the ampule was sealed. If it goes straight through to the bottom of the ampule with no resistance, then the seal was broken during transit.
Helpful?
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