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Merck

R4408

Chloramphenicol

Ready Made Solution, 100 mg/mL in ethanol: isopropanol (95:5), ≥98% (HPLC)

Synonym(s):

D-(-)-threo-2,2-Dichloro-N-[β-hydroxy-α−(hydroxymethyl)-β-(4-nitrophenyl)ethyl]acetamide, D-(-)-threo-2-Dichloroacetamido-1-(4-nitrophenyl)-1,3-propanediol, D-threo-2,2-Dichloro-N-[β-hydroxy-α-(hydroxymethyl)-4-nitrophenethyl]acetamide

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About This Item

NACRES:
NA.85
UNSPSC Code:
51102831

Key Documents

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assay

≥98% (HPLC)

form

ready-to-use solution

concentration

100 mg/mL in ethanol: isopropanol (95:5)

antibiotic activity spectrum

Gram-negative bacteria, Gram-positive bacteria

mode of action

protein synthesis | interferes

shipped in

dry ice

storage temp.

−20°C

Quality Level

200

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Application

Chloramphenicol is a synthetic antibiotic, isolated from strains of Streptomyces venezuelae. It is often used for bacterial selection in molecular biology applications at 10-20 μg/mL and as a selection agent for transformed cells containing chloramphenicol reistance genes.

Biochem/physiol Actions

Mode of Action: Chloramphenicol inhibits bacterial protein synthesis by blocking the peptidyl transferase step by binding to the 50S ribosomal subunit and preventing attachment of aminoacyl tRNA to the ribosome. It also inhibits mitochondrial and chloroplast protein synthesis and ribosomal formation of (p)ppGpp, de-pressing rRNA transcription.

Mode of Resistance: Use of chloramphenicol acetyltransferase will acetylate the product and inactivate it.

Antimicrobial Spectrum: This is a broad spectrum antibiotic against gram-positive and gram-negative bacteria, and is used mainly for ophthalmic and veterinary purposes.

Packaging

10ml

Preparation Note

This product is a ready made solution of 100 mg/mL in ethanol:isopropanol (95:5). It is shipped in dry ice and stored at -20°C.

Other Notes

Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.Storage class (TRGS 510): Flammable liquids")

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Danger

Hazard Classifications

Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

57.2 °F - closed cup

flash_point_c

14.0 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 1 petroleums + Hazardous rank II + Water insoluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

R4408-BULK: + R4408-10ML-PW: + R4408-VAR: + R4408-10ML:4548173312842

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Certificates of Analysis (COA)

Lot/Batch Number
0000492357
0000492357
0000461233
0000461233
0000471992

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Stephanie Petrella et al.
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Young Chan Song et al.
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Yudong Liu et al.
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Methicillin (meticillin)-resistant Staphylococcus aureus (MRSA) is a serious problem worldwide. To investigate the molecular epidemiology of MRSA isolates in China, a total of 702 MRSA isolates collected from 18 teaching hospitals in 14 cities between 2005 and 2006 were characterized
Johannes Zander et al.
Infection and immunity, 76(4), 1333-1339 (2007-12-28)
Thymidine-dependent small-colony variants (SCVs) of Staphylococcus aureus are frequently associated with persistent and recurrent infections in cystic fibrosis patients. The phenotypic appearance of S. aureus SCVs or normal-colony variants (NCVs) is postulated to be affected by the intracellular amount of

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