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SML0406

Sigma-Aldrich

Roquefortine C

≥98% (HPLC), from Penicillium roqueforti

Synonym(s):

2H-Pyrazino[1′,2′:1,5]pyrrolo[2,3-b]indole-1,4(3H,5aH)-dione, 10b-(1,1-dimethyl-2-propen-1-yl)-6,10b,11,11a-tetrahydro-3-(1H-imidazol-5-ylmethylene)-,(3E,5aS,10bR,11aS)-, Roquefortine from Penicillium roqueforti

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About This Item

Empirical Formula (Hill Notation):
C22H23N5O2
CAS Number:
Molecular Weight:
389.45
UNSPSC Code:
12161501
NACRES:
NA.77

biological source

Penicillium roqueforti

Quality Level

Assay

≥98% (HPLC)

solubility

chloroform: 1 mg/mL
ethyl acetate: 1 mg/mL
DMSO: 10 mg/mL
methanol: 10 mg/mL

storage temp.

−20°C

InChI

1S/C22H23N5O2/c1-4-21(2,3)22-10-17-18(28)25-16(9-13-11-23-12-24-13)19(29)27(17)20(22)26-15-8-6-5-7-14(15)22/h4-9,11-12,17,20,26H,1,10H2,2-3H3,(H,23,24)(H,25,28)/b16-9-

InChI key

SPWSUFUPTSJWNG-SXGWCWSVSA-N

Application

Roquefortine C has been used as a standard for the quantification of roquefortine C by high-performance liquid chromatography (HPLC). It has also been used as a standard for the quantification of roquefortine C by liquid chromatography-mass spectrometry (LC−MS/MS).

Biochem/physiol Actions

Roquefortine C is a paralytic neurotoxin of a dioxopiperazine structure produced by a diverse range of fungi, most notably Penicillium species. It has been found in blue cheese and in many other food products due to natural occurrence and contamination. Roquefortine C was found to be active on a wide range of organisms. It inhibits the growth of Gram-positive bacteria, and cockerels treated with roquefortine lost their righting reflex and died within 8-12 hours. Mice injected with roquefortine C experienced neurotoxic properties. Roquefortine C was also reported to inhibit cytochrome P450 as well as tubulin polymerization.

Preparation Note

Soluble in methanol (10 mg/mL), DMSO (10 mg/mL), ethyl acetate (1 mg/mL) and chloroform (1 mg/mL). DMSO solution at 10 mg/mL is stable for 3 months at −20 °C.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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A natural short pathway synthesizes roquefortine C but not meleagrin in three different Penicillium roqueforti strains
Kosalkova K, et al.
Applied Microbiology and Biotechnology, 99(18), 7601-7612 (2015)
David J Richard et al.
Proceedings of the National Academy of Sciences of the United States of America, 101(33), 11971-11976 (2004-05-14)
The syntheses of isoroquefortine C and a related heterocycle were achieved by implementation of both intra- and intermolecular vinyl amidation reactions. These accomplishments represent a significant advance in the use of these strategies in the generation of complex molecules.
Ramón O García-Rico et al.
International microbiology : the official journal of the Spanish Society for Microbiology, 12(2), 123-129 (2009-09-29)
Heterotrimeric G protein signaling regulates many processes in fungi, such as development, pathogenicity, and secondary metabolite biosynthesis. For example, the Galpha subunit Pga1 from Penicillium chrysogenum regulates conidiation and secondary metabolite production in this fungus. The dominant activating allele, pga1G42R
Ben Clark et al.
Journal of natural products, 68(11), 1661-1664 (2005-11-29)
The new isoprenylated diketopiperazine roquefortine E (6) has been isolated from an Australian soil isolate of the ascomycete Gymnoascus reessii. The known fungal metabolite roquefortine C (1) was also recovered as the major antibacterial principle, and all structures were assigned
Katarina Kosalková et al.
Biochimie, 91(2), 214-225 (2008-10-28)
The biosynthesis of the beta-lactam antibiotic penicillin is an excellent model for the study of secondary metabolites produced by filamentous fungi due to the good background knowledge on the biochemistry and molecular genetics of the beta-lactam producing microorganisms. The three

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