s-苯基-L-半胱氨酸

s-苯基-L-半胱氨酸结构式
s-苯基-L-半胱氨酸结构式
品牌特惠专场
常用名 s-苯基-L-半胱氨酸 英文名 S-Phenyl-L-cysteine
CAS号 34317-61-8 分子量 197.25
密度 1.3±0.1 g/cm3 沸点 361.5±37.0 °C at 760 mmHg
分子式 C9H11NO2S 熔点 200 °C (dec.)(lit.)
MSDS 中文版 美版 闪点 172.4±26.5 °C

Comparative study on the bioactivation mechanisms and cytotoxicity of Te-phenyl-L-tellurocysteine, Se-phenyl-L-selenocysteine, and S-phenyl-L-cysteine.

Chem. Res. Toxicol. 15(12) , 1610-8, (2002)

Tellurium compounds are effective antioxidants and chemoprotectors, even more active than their selenium and sulfur analogues. In addition to these properties, some selenium compounds, such as selenocysteine Se-conjugates, possess significant chemopreventive ...

Biomarkers of human exposure to benzene.

J. Toxicol. Environ. Health A 40(2-3) , 377-86, (1993)

Three biomarkers for benzene exposure were developed. The first biomarker, muconic acid in urine, results from the ring opening of a benzene metabolite. A gas chromatography/mass spectroscopy (GC/MS) assay was developed to measure urinary muconic acid, and th...

S-phenylcysteine formation in hemoglobin as a biological exposure index to benzene.

Arch. Toxicol. 66(5) , 303-9, (1992)

Benzene is metabolized to intermediates that bind to hemoglobin, forming adducts. These hemoglobin adducts may be usable as biomarkers of exposure. In this paper, we describe the development of a gas chromatography/mass spectroscopy assay for quantitating the...

Biological markers of exposure to benzene: S-phenylcysteine in albumin.

Carcinogenesis 13(7) , 1217-20, (1992)

Results of experiments in our laboratory have shown that benzene is metabolized by animals in part to an intermediate that binds to cysteine groups in hemoglobin to form the adduct S-phenylcysteine (SPC). These results suggested that SPC in hemoglobin may be ...

Overruling the energy gap law: fast triplet formation in 6-azauracil.

Cancer Epidemiol. Biomarkers Prev. 1(4) , 307-13, (1992)

The photophysical properties of 6-azauracil were studied by means of ab initio quantum chemical methods. On the basis of our calculations we propose here the following mechanism for the lack of fluorescence and the high triplet quantum yield that was observed...

S-phenylcysteine in albumin as a benzene biomarker.

Environ. Health Perspect. 104 Suppl 6 , 1147-9, (1996)

Biological markers of internal dose are useful for improving the extrapolation of health effects from exposures to high levels of toxic air pollutants in animals to low, ambient exposures in humans. Previous results from our laboratory have shown that benzene...

Protein adducts as dosimeters of human exposure to styrene, styrene-7,8-oxide, and benzene.

Toxicol. Lett. 108(2-3) , 117-26, (1999)

Cysteinyl adducts of hemoglobin (Hb) and albumin (Alb) formed via reactions with reactive species were measured in 48 subjects exposed to styrene (0.24-55.2 ppm) and to styrene-7,8-oxide (SO) (2.65-107 ppb) in a factory producing boats in the USA. Hb and Alb ...

Beta-phenyl cysteine: a leucine aminopeptidase inhibitor.

Pharmacol. Res. Commun. 16(6) , 533-8, (1984)

Beta-phenyl cysteine: a leucine aminopeptidase inhibitor. The kinetic parameters of the inhibition of the leucine aminopeptidase by beta-phenyl cysteine are reported in this communication.