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Benzoyl-L-histidine

$77

  • Brand : BIOFRON

  • Catalogue Number : BN-O1130

  • Specification : 98%(HPLC)

  • CAS number : 5354-94-9

  • Formula : C13H13N3O3

  • Molecular Weight : 259.26

  • PUBCHEM ID : 152263

  • Volume : 5mg

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Catalogue Number

BN-O1130

Analysis Method

Specification

98%(HPLC)

Storage

2-8°C

Molecular Weight

259.26

Appearance

Botanical Source

Structure Type

Category

SMILES

C1=CC=C(C=C1)C(=O)NC(CC2=CN=CN2)C(=O)O

Synonyms

BENZOYL-L-HISTIDINE MONOHYDRATE/BZ-HIS-OH/N-alpha-Benzoyl-L-Histidine/N-Benzoyl-L-Histidine/benzoyl-His/Histidine, N-benzoyl-/N-Benzoyl-Histidine/BZO-HIS-OH/Benzoylhistidine/BENZOYL-L-HISTIDINE/BENZOYL-HIS-OH/(S)-2-benzoylamino-3-(1H-imidazol-4-yl)propanoic acid/BZ-HISTIDINE/N-Benzoylhistidine

IUPAC Name

(2S)-2-benzamido-3-(1H-imidazol-5-yl)propanoic acid

Density

1.4±0.1 g/cm3

Solubility

Flash Point

354.3±30.1 °C

Boiling Point

662.3±50.0 °C at 760 mmHg

Melting Point

InChl

InChl Key

AUDPUFBIVWMAED-NSHDSACASA-N

WGK Germany

RID/ADR

HS Code Reference

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:5354-94-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

No Technical Documents Available For This Product.

PMID

3017335

Abstract

In connection with the physiological actions of active oxygen species on proteins, oxidative modification of histidine residues by the autoxidation of ascorbic acid was determined and the main oxidized compound was identified. Oxidation of imidazole ring by the ascorbic acid-copper ion system was considerably site-specific and assumed to be initiated by the addition of the hydroxyl radical (.0H) at C-2 position in the imidazole ring.

Title

Selective Oxidation of Imidazole Ring in Histidine Residues by the Ascorbic Acid-Copper Ion System

Author

K Uchida, S Kawakishi

Publish date

1986 Jul 31

PMID

8794762

Abstract

The basis of the irreversible inactivation of the vanadium bromoperoxidase (V-BrPO) isolated from the marine alga Ascophyllum nodosum under turnover conditions at low pH (i.e., 15 to 100 mM H2O2, 0.1 KBr, ca. 15 nM V-BrPO in 0.1 M citrate, pH 4) has been investigated. Inactivation under these conditions was found to produce 2-oxohistidine as identified by HPLC using electrochemical detection. Formation of 2-oxohistidine requires all the components of turnover (i.e., bromide, hydrogen peroxide, and V-BrPO) as well as low pH; inactivation does not occur nor is significant 2-oxohistidine formed in the presence of hydrogen peroxide alone. The oxidation of histidine did not occur by singlet oxygen generated by V-BrPO, because neither 2-oxohistidine nor inactivation occur under the conditions in which singlet oxygen is produced quantitatively by V-BrPO. The addition of aqueous bromine to N alpha-benzoylhistidine at low pH formed N alpha-benzoyl-2-oxohistidine. cis-Dioxovanadium(V) (VO2+) in strong acid and MoO(O2)2(ox)2- (ox2- is oxalate) at pH 5, both of which are functional mimics of V-BrPO by oxidizing bromide by hydrogen peroxide, catalyzed the oxidation of N alpha-benzoylhistidine to N alpha-benzoyl-2-oxohistidine. Furthermore, when hypobromite was added to N alpha-benzoylhistidine in the presence of hydrogen peroxide at neutral pH, conditions under which HOBr would react first with H2O2 to produce singlet oxygen, no N alpha-benzoyl-2-oxohistidine was formed. Thus the oxidation of histidine in V-BrPO is proposed to occur via oxidized bromine species. Irreversible inactivation V-BrPO was also found to be accompanied by release of vanadium.

Title

Inactivation of Vanadium Bromoperoxidase: Formation of 2-oxohistidine

Author

G E Meister Winter 1, A Butler

Publish date

1996 Sep 10

PMID

31817310

Abstract

A sensitive strategy to rapidly detect fipronil residues in eggs using multibranch gold nanoparticles (AuNPs) as the substrate of surface-enhanced Raman spectroscopy (SERS) was investigated in this study. Under optimized conditions, fipronil molecules preferentially deposited on the multibranch gold nanoparticles with preferential (111) facet-oriented growth due to its low surface energy. This anisotropic growth promoted the increase of SERS “hot spots”, inducing a huge enhancement of Raman signals of the fipronil. An external standard calibration method was employed for quantitative analysis, and the method was validated for linearity, sensitivity, repeatability and recovery. Good linearity were found in the concentration range of 10 ng/L~10 mg/L in fipronil acetone solution (R2 = 0.9916) and 8 × 10−5 mg/m2 to 0.8 mg/m2 on eggshells (R2 = 0.9906), respectively. The recovery rate based on acetone recovered fipronil on eggshells and in egg liquids was 80.13%~87.87%, and 81.34%~88.89%, respectively. The SERS assay was successfully used to monitor fipronil in eggs.

KEYWORDS

surface-enhanced Raman spectroscopy, gold nanoparticles, fipronil, eggs, rapid analysis

Title

Multibranch Gold Nanoparticles as Surface-Enhanced Raman Spectroscopy Substrates for Rapid and Sensitive Analysis of Fipronil in Eggs

Author

Haonuan Zhao, Dandan Huang,* and Shuhua Zhu*

Publish date

2019 Dec


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