Aflatoxin Q1
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| Category | Mycotoxins |
| Catalog number | BBF-05795 |
| CAS | 52819-96-2 |
| Molecular Weight | 328.27 |
| Molecular Formula | C17H12O7 |
| Purity | ≥98% |
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Description
Aflatoxin Q1 is a metabolite of Aflatoxin B1. It is created in human body as a in-vivo detoxification process of Aflatoxin B1.
Specification
| Synonyms | Cyclopenta[c]furo[3',2':4,5]furo[2,3-h][1]benzopyran-1,11-dione, 2,3,6a,9a-tetrahydro-3-hydroxy-4-methoxy-, (3S,6aR,9aS)-; Cyclopenta(c)furo(3',2':4,5)furo(2,3-h)(1)benzopyran-1,11-dione, 2,3,6a,9a-tetrahydro-3-hydroxy-4-methoxy-, (3S-(3-alpha,6a-alpha,9a-alpha))-; (3S,6aR,9aS)-3-hydroxy-4-methoxy-2,3,6a,9a-tetrahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene-1,11-dione |
| Storage | Store at -20°C |
| IUPAC Name | (3S,7R,14S)-14-hydroxy-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione |
| Canonical SMILES | COC1=C2C3=C(C(=O)CC3O)C(=O)OC2=C4C5C=COC5OC4=C1 |
| InChI | InChI=1S/C17H12O7/c1-21-9-5-10-11(6-2-3-22-17(6)23-10)15-14(9)12-7(18)4-8(19)13(12)16(20)24-15/h2-3,5-7,17-18H,4H2,1H3/t6-,7-,17+/m0/s1 |
| InChI Key | GYNOTJLCULOEIM-XKRJZGAWSA-N |
Properties
| Appearance | Off-white Powder |
| Application | A metabolite of Aflatoxin B1; a hepatocarcinogen in many animal models and probably a human carcinogen. It is produced by the predominant forms of cytochrome P 450 enzymes responsible for the biotransformation of AFB1. It shows potential predictive value |
| Boiling Point | 589.0±50.0°C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Solubility | Soluble in DCM, DMSO, Methanol |
Reference Reading
1. Molecular dosimetry in rat urine of aflatoxin-N7-guanine and other aflatoxin metabolites by multiple monoclonal antibody affinity chromatography and immunoaffinity/high performance liquid chromatography
J D Groopman, A Pikul, P R Donahue, J A Hasler, L J Trudel, G N Wogan Cancer Res . 1992 Jan 15;52(2):267-74.
The development of molecular dosimetry methods will simplify the identification of people at high risk for cancer. A combined monoclonal antibody immunoaffinity chromatography/high performance liquid chromatography method has been devised to isolate and quantify aflatoxin-DNA adducts and other metabolites in rat urine samples. We report the production of 11 different monoclonal antibodies recognizing aflatoxin B1, aflatoxin Q1, aflatoxin G1, aflatoxicol, and aflatoxin M1 and the application of these antibodies to a multiple monoclonal antibody affinity chromatography technique. Using the multiple monoclonal antibody affinity column with rat urines obtained from dosed animals, between 90 and 95% of total aflatoxin metabolites can be bound to the column and isolated. Analytical immunoaffinity chromatography/high performance liquid chromatography analysis of these isolated aflatoxins reveals that more than 55% of the aflatoxins in rat urine are aflatoxin-dihydrodiol, aflatoxin-N7-guanine, aflatoxin Q1, aflatoxin M1, aflatoxin P1, and aflatoxin B1, accounting for 1.5, 9.6, 1.8, 34.5, 8.0, and 1.0% of the total aflatoxins, respectively. Further, a perchloric acid digestion of the aflatoxin-N7-guanine peak was used to confirm its identity by its conversion to guanine. The measurement of aflatoxin-N7-guanine excretion in rat urine was examined to assess its utility as a marker of DNA adduct formation in the liver, and a dose-dependent excretion in urine was found with a correlation coefficient of 0.99. A comparison of the dose-dependent residual levels of aflatoxin binding to liver DNA with the amount of aflatoxin-N7-guanine excreted in urine showed a correlation coefficient of 0.98. Besides the nucleic acid adduct excretion data, aflatoxin M1 and aflatoxin P1 were evaluated as molecular dosimeters in the urine. Aflatoxin M1 was found to be an excellent marker, whereas no linear relationship between dose and aflatoxin P1 excretion in urine was found.
2. The metabolism of aflatoxin B1 by hepatocytes isolated from rats following the in vivo administration of some xenobiotics
G E Neal, S A Metcalfe Carcinogenesis . 1983 Aug;4(8):1007-12. doi: 10.1093/carcin/4.8.1007.
Isolated rat hepatocytes, an intact cellular system capable of performing phase I and phase II metabolism, have been used to investigate metabolism of aflatoxin B1. These cells were found to metabolise [14C]aflatoxin B1 to aflatoxins M1 and Q1, and to radiolabelled polar material, presumably conjugates, as analysed by h.p.l.c., t.l.c. and radioactive determination. In vivo administration of the mixed function oxidase inducers, phenobarbitone and 3-methylcholanthrene, resulted in enhanced hepatocyte phase I (microsomal) metabolism of aflatoxin B1. In contrast to metabolism of AFB1 by in vitro subcellular systems increased production of polar material (conjugated metabolites) derived from [14C]aflatoxin B1 was also detected in hepatocytes isolated from these pretreated animals. Formation of aflatoxin Q1 by isolated hepatocytes appeared to be mediated by cytochrome P450-linked enzymes whereas cytochrome P448-linked enzymes were apparently involved in aflatoxin M1 production. Chronic feeding of aflatoxin B1 to rats enhanced hepatocyte production of conjugated material only and did not elevate cellular cytochrome P450 levels, thus suggesting that aflatoxin B1 is not an inducer of its own primary metabolism.
3. The in vitro metabolism of aflatoxin Q1 by mouse and rabbit liver preparations
T P Rohrig, D M Yourtee Res Commun Chem Pathol Pharmacol . 1985 Oct;50(1):103-23.
The investigation of the in vitro metabolism of aflatoxin Q1 by the post-mitochondrial fraction of mouse and rabbit liver is reported. Both animals metabolized this substance at a turnover similar to aflatoxin B1. There was a higher bound fraction and lower aqueous fraction from the metabolism of B1 than from aflatoxin Q1. The aqueous fraction of the metabolisms evidenced the beta-D-glucuronide of aflatoxin Q1. The rabbit metabolism of Q1 was characterized by high levels of chloroform soluble metabolites. In contrast, the mouse metabolism resulted in high glucuronide and bound Q1 metabolite levels.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
