Accelerating Drug Discovery Through AI
OCSR.ai is a Chemical Intelligence Engine built by Rasayan Labs Inc., founded in 2025. We provide researchers with a single platform to search, analyze, and predict the behavior of molecules at scale.
What We Do
Molecular Search
Search across 1.3 trillion molecules by SMILES, InChIKey, IUPAC name, molecular formula, or CAS number. Results are returned in milliseconds with full structural data.
Structure Recognition
Our optical chemical structure recognition engine achieves 93.2% accuracy on handwritten molecular structures, allowing researchers to digitize notebooks and legacy literature.
Similarity Search
Find structurally similar compounds using Morgan fingerprints and Tanimoto similarity scoring across our entire molecular database.
ADMET Predictions
AI-powered absorption, distribution, metabolism, excretion, and toxicity predictions help researchers evaluate drug candidates before synthesis.
Retrosynthesis Planning
Automated retrosynthetic analysis identifies viable synthesis routes, drawing on over 40 million known chemical reactions.
Literature Mining
Comprehensive literature and patent mining surfaces relevant publications, experimental procedures, and prior art for any compound.
Our Mission
Drug discovery is slow, expensive, and often fails in late stages. We believe AI can change that. OCSR.ai brings together molecular intelligence, predictive modeling, and chemical literature into a single, free platform -- giving every researcher access to tools that were previously available only to large pharmaceutical companies.
Platform at a Glance
1.3T
Molecules searchable
93.2%
OCSR accuracy
40M+
Chemical reactions
Free
For researchers
API Access
OCSR.ai's proprietary services -- including Image-to-SMILES (OCSR) recognition, Tanimoto similarity search, ADMET predictions, and Darvi AI -- are available exclusively through the OCSR.ai platform. All API endpoints are authenticated and rate-limited.
Automated scraping, bulk data extraction, and unauthorized programmatic access are prohibited under our Terms of Service.
For API access, enterprise licensing, bulk data partnerships, or research collaborations, contact [email protected].
Contact
Email: [email protected]
LinkedIn: Rasayan Labs