Description

7-Nitrobenz(A)Anthracene-trans-3,4-Dihydrodiol CAS NO 87261-28-7 is a high-purity, polycyclic aromatic hydrocarbon (PAH) metabolite reference standard. This compound is critically important for research and analytical applications requiring precise calibration and method validation. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on toxicology and metabolic studies of nitro-PAHs.

Application

• Analytical Reference Standard: For use in High-Performance Liquid Chromatography (HPLC), Gas Chromatography-Mass Spectrometry (GC-MS), and other analytical techniques to identify and quantify PAH metabolites in complex matrices.
• Environmental Monitoring: Calibration standard for assessing the presence and concentration of nitro-PAH derivatives, which are environmental pollutants, in soil, water, and air samples.
• Toxicology and Metabolic Pathway Research: Used in studies investigating the metabolic activation, DNA adduct formation, and carcinogenic mechanisms of benz(a)anthracene and related nitro-substituted PAHs.
• Biomarker Development: Serves as a critical reagent in developing assays to detect specific PAH metabolite biomarkers in biological samples for exposure assessment.
• Pharmaceutical Impurity Profiling: Potential use as a reference compound in impurity identification for pharmaceuticals where PAH structures are of concern.
• Chemical Synthesis Intermediate: Acts as a specialized synthon or precursor in the organic synthesis of more complex molecules for research purposes.

Basic Information

Item	Detail
Product Name	7-Nitrobenz(A)Anthracene-trans-3,4-Dihydrodiol
CAS No.	87261-28-7
Molecular Formula	C20H13NO4
Molecular Weight	331.32 g/mol
Synonyms	7-Nitrobenz[a]anthracene-3,4-dihydrodiol; 7-Nitro-BA-trans-3,4-diol; 3,4-Dihydroxy-3,4-dihydro-7-nitrobenz[a]anthracene; 7-Nitrobenz(a)anthracene-3,4-diol; 7-Nitro-BA-3,4-dihydrodiol; trans-3,4-Dihydroxy-3,4-dihydro-7-nitrobenz[a]anthracene; 7-Nitro-BA-trans-dihydrodiol; 7-Nitrobenzanthracene dihydrodiol
EINECS	Contact for details

Quality Control

Our 7-Nitrobenz(A)Anthracene-trans-3,4-Dihydrodiol is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity suitable for research and analytical applications. Each lot is characterized using advanced spectroscopic and chromatographic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and impurity profile is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, cool place. This product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to light brown solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Related Substances (HPLC)	Individual impurity ≤ 2.0%
Total Impurities	≤ 5.0%
Water Content (KF)	≤ 1.0% w/w

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.