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Merck

C4881

Sigma-Aldrich

Chlortetracyclin -hydrochlorid

≥91.0% dry basis (HPLC)

Synonym(e):

7-Chlor-tetracyclin -hydrochlorid

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55,10 €
25 G
173,00 €
100 G
453,00 €

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Versandbereit am07. April 2025Details


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5 G
55,10 €
25 G
173,00 €
100 G
453,00 €

About This Item

Empirische Formel (Hill-System):
C22H23ClN2O8 · HCl
CAS-Nummer:
Molekulargewicht:
515.34
Beilstein:
3858364
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
51102829
PubChem Substanz-ID:
NACRES:
NA.85

55,10 €


Versandbereit am07. April 2025Details


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Qualitätsniveau

Assay

≥91.0% dry basis (HPLC)

Form

powder

pKa (25 °C)

3.3
7.4
9.3

mp (Schmelzpunkt)

210-215 °C (dec.) (lit.)

Löslichkeit

1 M NaOH: 50 mg/mL

Wirkungsspektrum von Antibiotika

Gram-negative bacteria
Gram-positive bacteria

Wirkungsweise

protein synthesis | interferes

Lagertemp.

−20°C

SMILES String

Cl.CN(C)[C@H]1[C@@H]2CC3C(=C(O)[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c4c(O)ccc(Cl)c4[C@@]3(C)O

InChI

1S/C22H23ClN2O8.ClH/c1-21(32)7-6-8-15(25(2)3)17(28)13(20(24)31)19(30)22(8,33)18(29)11(7)16(27)12-10(26)5-4-9(23)14(12)21;/h4-5,7-8,15,26,28-29,32-33H,6H2,1-3H3,(H2,24,31);1H/t7?,8-,15-,21-,22-;/m0./s1

InChIKey

CBHYYLPALVVVEY-LYNLVHCPSA-N

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Allgemeine Beschreibung

Chemical structure: tetracycline

Anwendung

Cell-permeable fluorescent probe for Ca2+ for measuring calcium flux in endoplasmic reticulum and other intracellular stores in situ.

Biochem./physiol. Wirkung

Chlortetracycline is an antibiotic produced by some strains of Streptomyces aureofaciens.
Mode of Action: Inhibits protein synthesis (elongation) by preventing binding of aminoacyl-tRNA to the 30S subunit.
Antimicrobial spectrum: Gram-positive. Less active against Gram-negative bacterial than tetracycline.
Mode of Resistance: Loss of cell wall permeability.

Sonstige Hinweise

If stored frozen, chlortetracycline hydrochloride is expected to remain stable at least four years.

Ähnliches Produkt

Piktogramme

Health hazardExclamation mark

Signalwort

Warning

Gefahreneinstufungen

Eye Irrit. 2 - Repr. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Zielorgane

Respiratory system

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

W K Amoa-Awua et al.
Journal of applied microbiology, 83(3), 288-296 (1997-11-14)
Agbelima, a fermented cassava meal widely consumed in Ghana, Togo and Benin, is produced by fermenting grated cassava with one of several types of traditional cassava dough inoculum. During fermentation a smooth textured sour dough is produced, the toxicity of
Y H Choi et al.
Biology of reproduction, 59(6), 1328-1333 (1998-11-26)
Cyclodextrin, which stimulates cholesterol efflux from cells, was examined for its ability to induce capacitation of mouse spermatozoa. A chemically defined, protein-free medium was used for in vitro fertilization of cumulus-free mouse eggs. Fertilization did not occur in modified Krebs-Ringer
A H Amin et al.
Human reproduction (Oxford, England), 11(4), 741-745 (1996-04-01)
This study was designed to compare three different fluorescent probes to assay the acrosome reaction in human spermatozoa: chlortetracycline (CTC), mannosylated bovine serum albumin (BSA) labelled with fluorescein (MAF), and quinacrine (QN). Normal human sperm ejaculates were washed and allowed
A E Oliver et al.
Biophysical journal, 78(4), 2116-2126 (2000-03-29)
The effect of temperature on the binding equilibria of calcium-sensing dyes has been extensively studied, but there are also important temperature-related changes in the photophysics of the dyes that have been largely ignored. We conducted a systematic study of thermal
Jasmer Dalal et al.
Scientific reports, 9(1), 6712-6712 (2019-05-02)
The objective of this study was to determine the mechanism by which RU 486 (mifepristone) protects sperm to undergo premature capacitation during cryopreservation. For this, semen ejaculate (n = 20) was divided into four equal fractions and diluted using egg yolk-based extender

Fragen

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 Antwort
    1. 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/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 Antwort
    1. 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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