info@rsquarebiolabs.com +91 8125224807 / +91 6300087350 RSQUARE BIO LABS PRIVATE LIMITED - KSG projects, Plot No 60, Phase III IDA Cherlapally, Hyderabad - 500051 Careers FAQs Regulatory Support
21 CFR Part 11 Compliant CDS

Analytical Chemistry Services

State-of-the-art chromatography, mass spectrometry, spectroscopy, and thermal analysis driven by automated CDS systems and audit trails.

HPLC / UHPLC Analysis

High-performance liquid chromatography for assay, related substances, stability testing, and routine QC analysis.

GC / GC-MS Profiling

Gas chromatography coupled with mass spectrometry for residual solvents, fatty acid profiling, and volatile analysis.

LC-MS/MS Bioanalysis

Triple quadrupole mass spectrometry for sub-ppb nitrosamine quantitation, trace impurity identification, and PK bioanalysis.

ICP-MS / ICP-OES

Inductively coupled plasma mass spectrometry for elemental impurities (USP <232>/<233>) and trace heavy metals analysis.

FTIR Spectroscopy

Fourier-transform infrared spectroscopy with ATR attachment for raw material fingerprinting and polymer identification.

UV-Visible Spectroscopy

Quantitative spectrophotometric assays, extinction coefficient determination, and colorimetric concentration checks.

TOC Analysis

Total Organic Carbon testing for Purified Water, Water for Injection (USP <643>), and cleaning validation swab samples.

Particle Size Analysis

Laser diffraction particle size distribution (PSD d10, d50, d90) for powder APIs, suspensions, and emulsions.

XRD (X-Ray Diffraction)

Powder X-ray diffraction for API polymorph identification, crystallinity percentage, and phase purity determination.

DSC / TGA Thermal Analysis

Differential Scanning Calorimetry and Thermogravimetric Analysis for glass transition, melting point, and thermal degradation.

Water Testing

Comprehensive physicochemical and microbiological analysis of Purified Water, WFI, and process water as per APHA Standard Methods, IP, and USP <1231> — including pH, conductivity, TOC, heavy metals, nitrates, and microbial limits.

Stability Studies

ICH Q1A/Q1B-guided accelerated, intermediate, and long-term stability testing for drug products and APIs under controlled temperature and humidity conditions — supporting shelf-life determination and regulatory submissions.

WhatsApp