---
name: Clearsynth
slug: clearsynth
site: cdmo
website_domain: clearsynth.com
summary: Clearsynth delivers advanced deuterium science, isotopically labelled compounds, custom synthesis, and specialized CDMO services for small-molecule drug discovery and development. ISO 17025, ISO 17034, and ISO 9001:2015 certified with capabilities spanning reference standards, generic APIs, process development, and scale-up manufacturing. Headquartered in Mumbai, India.
tagline: Advanced deuterium science and custom synthesis for pharmaceutical discovery and regulated manufacturing.
founded_year: 
employee_count_band: 
employee_count_label: 
parent_name: 
parent_slug: 
hq_country: IN
tier2_domain_verified: false
updated_at: 2026-09-08T07:04:19.178Z
services_count: 5
modalities_count: 1
indications_count: 0
locations_count: 3
review_signal_gate: closed
generated_by: BioBM Editorial AI
---

# Clearsynth

Advanced deuterium science and custom synthesis for pharmaceutical discovery and regulated manufacturing.

Listed on cdmo.directory.

## Summary

Clearsynth delivers advanced deuterium science, isotopically labelled compounds, custom synthesis, and specialized CDMO services for small-molecule drug discovery and development. ISO 17025, ISO 17034, and ISO 9001:2015 certified with capabilities spanning reference standards, generic APIs, process development, and scale-up manufacturing. Headquartered in Mumbai, India.

## At a glance

- HQ country: IN

## Services

- API Synthesis & Manufacturing
- Small Molecule Development & Manufacturing
- Process Development
- CMC Analytical Development
- Quality Control Testing

## Modalities

- Small Molecule

## Locations

- Corporate Headquarters, Mumbai, Maharashtra, India
- Regional Office, Canada, Canada
- Regional Office, USA, United States

## Certifications

- ISO; Identifier: ISO 17025; Source: https://clearsynth.com/
- ISO; Identifier: ISO 17034; Source: https://clearsynth.com/
- ISO; Identifier: ISO 9001:2015; Source: https://clearsynth.com/
- DSIR; Identifier: DSIR Recognized; Source: https://clearsynth.com/

## Long description

## Overview

Clearsynth is a technology-driven, research-led enterprise specializing in advanced deuterium science, stable isotope-labelled compounds, custom chemistry, and contract development and manufacturing services. The company serves global discovery, analytical, and regulated pharmaceutical workflows with precision and technical depth.

## Service Lines

**Standards & Reference Materials**
- Reference standards, impurities, and stable isotope-labelled compounds for research, analysis, and quality-control workflows
- Pesticide standards, nitrosamines, NMR solvents, trace metal standards, and controlled substance reference materials

**Generic APIs**
- Focused generic API manufacturing supported by deuterium chemistry, process optimization, and scale-up execution

**d-CDMO (Deuterated CDMO)**
- Specialized deuterated development and manufacturing delivered through collaborative chemistry, analytical alignment, and disciplined execution

**Custom Chemical Services**
- Small-molecule synthesis from milligram to multi-kilogram scale
- Route optimization and process development
- End-to-end contract R&D synthesis from preclinical stage through product release and production scale-up
- High-field NMR and GLP-compliant analytical services

## Quality & Compliance

Clearsynth operates quality-certified facilities with extensive documentation and rigorous quality control standards. The company holds:
- ISO 17025 accreditation
- ISO 17034 accreditation
- ISO 9001:2015 certification
- D-U-N-S registration
- DSIR (Department of Scientific and Industrial Research) recognition

## Geographic Presence

The company maintains regional offices in India, Canada, and the USA, with corporate headquarters in Mumbai, India.

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_Profile last updated: 2026-09-08T07:04:19.178Z. Profile facts may include AI-assisted enrichment._

Auto-generated by BioBM Editorial AI for machine-readable profile access.