ACS Spectrophotometric Grade (≥99.9%)

Ultra-High Purity for Precise UV-Vis and Spectroscopic Analysis

ACS Spectrophotometric Grade reagents are specially manufactured to meet both the American Chemical Society (ACS) specifications and stringent optical transparency standards required for UV-Visible spectrophotometry and other high-precision spectroscopic applications. With a typical purity of ≥99.9%, this grade ensures minimal absorbance, stable baselines, and reliable reproducibility in quantitative and qualitative analysis.

Key Features

· ≥99.9% Chemical Purity
Meets or exceeds ACS reagent specifications for general analytical use, with trace impurities rigorously controlled.

· Low UV Absorbance at Critical Wavelengths
Carefully purified to ensure optical clarity at 190–700 nm, making it suitable for UV-Vis, IR, and fluorescence spectrophotometry.

· Lot-to-Lot Consistency
Every batch is tested for both chemical purity and spectral quality to deliver reproducible analytical results.

· Certified Performance
Supplied with a Certificate of Analysis (CoA) confirming UV absorbance limits, purity, and spectral transmission data.

Typical Applications

· UV-Vis and IR spectroscopic measurements

· Trace impurity detection

· Standard preparation for photometric assays

· Reference solutions and calibration standards

· Quality control (QC) and method validation in regulated environments

Available Formats

· 100 mL, 500 mL, 1L amber glass bottles

· Custom volumes and ampouled packaging available upon request

Why Choose ACS Spectrophotometric Grade?

· Assures accurate photometric readings with minimal spectral background

· Complies with ACS purity guidelines and spectral standards

· Ideal for analytical labs, research institutions, and QA/QC departments requiring trace-level optical accuracy

Spectrophotometric vs ACS vs HPLC Grade Comparison

Attribute	ACS Spectrophotometric Grade (≥99.9%)	ACS Reagent Grade	HPLC Grade
Typical Purity	≥99.9%	≥95–99.9%	≥99.9%
UV Absorbance Control	Ultra-low at 190–700 nm	Moderate UV transparency	Low absorbance at 190–254 nm
Spectral Range Transparency	Validated for UV-Vis and IR	Not spectrally validated	Screened for UV cutoff (not full spectrum)
MS Compatibility	Not guaranteed for MS	Occasionally compatible	Sometimes MS-compatible
Primary Use	Spectroscopy, photometric assays, calibration standards	General chemical analysis and lab use	Chromatography, method development
Testing Standards	ACS + optical absorbance thresholds	ACS Reagent Chemicals standards	UV absorbance and particle count testing
Documentation Provided	Certificate of Analysis (CoA), UV spectrum	CoA, compliance statement	CoA, MSDS, UV trace
Common Applications	UV-Vis, IR, fluorescence, calibration curves	Titrations, sample prep, buffer formulations	Gradient LC, reversed-phase HPLC

Here is the formatted comparison table of ACS Spectrophotometric Grade vs ACS Reagent Grade vs HPLC Grade, highlighting their differences in purity, spectral validation, and intended applications.

View all ACS Spectrophotometric Grade (≥99.9%) Products