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D6140

Sigma-Aldrich

Demeclocycline hydrochloride

powder or crystals, suitable for cell culture

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Synonym(s):
7-Chloro-6-demethyltetracycline hydrochloride, Demethylchlorotetracycline hydrochloride
Empirical Formula (Hill Notation):
C21H21ClN2O8 · HCl
CAS Number:
Molecular Weight:
501.31
Beilstein:
3849198
EC Number:
MDL number:
UNSPSC Code:
12352207
PubChem Substance ID:
NACRES:
NA.75

Assay

89.5-102.0% anhydrous basis

Quality Level

form

powder or crystals

technique(s)

cell culture | mammalian: suitable

solubility

soluble (1 mg/mL of Demeclocycline Hydrochloride in 0.01 N hydrochloric acid)

antibiotic activity spectrum

Gram-negative bacteria
Gram-positive bacteria

Mode of action

protein synthesis | interferes

storage temp.

−20°C

SMILES string

Cl[H].[H][C@]12C[C@@]3([H])[C@H](N(C)C)C(O)=C(C(N)=O)C(=O)[C@@]3(O)C(O)=C1C(=O)c4c(O)ccc(Cl)c4[C@H]2O

InChI

1S/C21H21ClN2O8.ClH/c1-24(2)14-7-5-6-10(16(27)12-9(25)4-3-8(22)11(12)15(6)26)18(29)21(7,32)19(30)13(17(14)28)20(23)31;/h3-4,6-7,14-15,25-26,28-29,32H,5H2,1-2H3,(H2,23,31);1H/t6-,7-,14-,15-,21-;/m0./s1

InChI key

GVSJQNRGSCOSNJ-KBHRXELFSA-N

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General description

Chemical structure: tetracycline

Biochem/physiol Actions

Because it is excreted more slowly than tetracycline, it maintains effective blood levels for longer periods of time.
Demeclocycline hydrochloride is a tetracycline antibiotic derived from a strain of Streptomyces aureofaciens. DMC protects neurons from glutamate induced toxicity by suppressing calpain I and II activities.
Used to study mechanisms of bacterial protein synthesis inhibition at the level of the 30S subunit and aminoacy-tRNA A-site binding.

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. 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.

  3. 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.

  4. 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.

  5. 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. 

  6. What is the solubility of Product D6140, Demeclocycline hydrochloride? 

    Product D6140, Demeclocycline hydrochloride, has been found to be soluble in water at 20mg/ml, with heat as needed.  This will yield a clear yellow to very dark green-yellow solution.

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To investigate the discoloration potential of endodontic materials using a bovine tooth model. Two hundred and 10 dentine-enamel cuboid blocks (10 × 10 × 3.5 mm) were prepared out of the middle thirds of bovine tooth crowns. Standardized cavities were

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