Terms of Service

1. Acceptance of Terms

These Terms of Service ("Terms") govern your access to and use of OCSR.ai ("Platform", "Service"), operated by Rasayan Labs Inc. ("Rasayan Labs", "Company", "we", "us", "our"). By accessing or using OCSR.ai, including our search engine, compound pages, AI assistant Darvi, prediction services, PDF report generation, drawing tools, and APIs, you agree to be bound by these Terms. If you do not agree, do not use the Platform.

2. Description of Service

OCSR.ai is a Chemical Intelligence Engine that provides:

• Molecular Search: Search across 1.3 trillion molecules by SMILES, InChIKey, IUPAC name, molecular formula, CAS number, or free-text queries.
• Optical Chemical Structure Recognition (OCSR): Image-based extraction of molecular structures from photographs, scans, or screenshots.
• Tanimoto Similarity Search: Structural similarity search using Morgan fingerprints against our full molecular database.
• Compound Intelligence: Molecular properties, drug-likeness assessment, physicochemical descriptors, and structural analysis for any compound.
• Toxicity & Safety Predictions: Computational predictions including Ames mutagenicity, Tox21 12-panel nuclear receptor and stress response assays, and safety endpoint predictions (DILI, hERG, cardiotoxicity).
• ADMET & Drug Profile: AI-predicted absorption, distribution, metabolism, excretion, and toxicity parameters, including blood-brain barrier permeability, bioavailability, CYP450 inhibition, plasma protein binding, and predicted pharmacokinetics.
• Clinical & Bioactivity Data: Drug development phase, approved indications, mechanisms of action, target bioactivity data, and approved products sourced from public databases.
• Literature & Patent Mining: Scientific publication references and patent landscape analysis for compounds.
• Darvi AI Assistant: An AI-powered chemistry assistant that answers questions about compounds using real-time data from the Platform.
• Ketcher Molecular Editor: Browser-based structure drawing and editing tool.
• PDF Report Generation: Downloadable compound reports containing identity, properties, toxicity, ADMET, clinical, and literature data.
• Auto-Created Compounds: Automatic indexing of novel molecules submitted via SMILES search, with computed properties and similarity indexing.

3. Acceptable Use

You may use OCSR.ai for lawful purposes including:

• Academic and scientific research.
• Pharmaceutical and biotech drug discovery.
• Chemical safety assessment and regulatory compliance support.
• Educational purposes.
• Commercial research and development.

3.1 Prohibited Activities

You must NOT:

• Use automated scripts, bots, scrapers, or crawlers to systematically extract data from the Platform without prior written authorization.
• Attempt to reverse-engineer, decompile, or extract our proprietary machine learning models, algorithms, or scoring methods.
• Circumvent or interfere with rate limits, security measures, or access controls.
• Redistribute, resell, or sublicense data obtained from the Platform as a standalone database product.
• Use the Platform to design, synthesize, or distribute controlled substances, chemical weapons, or any substance intended to cause harm.
• Misrepresent the source of data by removing attribution to OCSR.ai, Rasayan Labs, or upstream data sources (PubChem, ChEMBL, FDA).
• Submit malicious inputs designed to exploit vulnerabilities, inject code, or corrupt data.
• Use the Platform in any way that violates applicable local, state, national, or international law.

4. Rate Limits & Fair Use

• The Platform enforces rate limits on search, prediction, similarity, and AI endpoints to ensure equitable access for all users.
• Interactive human use is not subject to restrictive limits under normal circumstances.
• Automated or programmatic access exceeding 100 requests per minute may be throttled or blocked.
• Sustained high-volume access patterns that degrade service for other users will result in temporary IP-based restrictions.
• For authorized API access, bulk data extraction, or integration partnerships, contact [email protected].

5. Proprietary Services & API Restrictions

The following services are proprietary to Rasayan Labs Inc. and are available exclusively through the OCSR.ai platform interface:

• Image-to-SMILES (OCSR): Our optical chemical structure recognition engine that converts images of molecular structures to machine-readable SMILES notation. This service is not available for external API consumption. For API access or licensing, contact [email protected].
• Tanimoto Similarity Search: Our molecular similarity search engine using Morgan fingerprints across 1.3 trillion molecules. Bulk similarity queries require authorization.
• ADMET & Toxicity Prediction Services: Our machine learning prediction endpoints for toxicity screening, safety endpoints, and pharmacokinetic predictions are rate-limited and access-controlled.
• Darvi AI: Our chemistry-focused AI assistant is available through the OCSR.ai compound pages only.

All API endpoints are authenticated and protected. Unauthorized programmatic access to these services constitutes a violation of these Terms and may result in permanent IP blocking and legal action.

6. Data Accuracy & Predictions Disclaimer

All molecular data, computational predictions, and AI-generated responses are provided for informational and research purposes only.

• Toxicity Predictions: Ames mutagenicity, Tox21, and safety endpoint predictions are computational screening-level estimates. They do not constitute formal (Q)SAR assessments as defined under ICH M7(R2), OECD Guidance Document 69, or EU REACH Annex XI. Experimental Ames testing (OECD 471/473) remains required for regulatory submissions.
• ADMET Predictions: Blood-brain barrier, bioavailability, CYP450 inhibition, and pharmacokinetic predictions are generated by machine learning models and should be validated experimentally before making drug development decisions.
• Clinical Data: Drug development phase, indications, and mechanism data are sourced from ChEMBL and may not reflect the most current regulatory status.
• Darvi AI: Responses from Darvi are AI-generated and may contain inaccuracies. Darvi should not be used as the sole basis for safety, toxicological, or clinical decisions.
• Literature & Patents: Patent and publication data is sourced from public databases and may not be comprehensive or current. Patent expiry dates are estimated (filing date + 20 years) and do not account for extensions, supplementary protection certificates, or regional variations.
• No Medical Advice: Nothing on this Platform constitutes medical, pharmaceutical, or clinical advice. Always consult qualified professionals for healthcare decisions.

7. Intellectual Property

7.1 Platform IP

The OCSR.ai platform, including its design, user interface, proprietary algorithms, machine learning models, scoring methods, and software code, are the intellectual property of Rasayan Labs Inc. and are protected by copyright, trade secret, and other intellectual property laws.

7.2 Third-Party Data

Molecular data served through OCSR.ai is sourced from public scientific databases and retains its original licensing terms:

• PubChem: Public domain data from the National Institutes of Health (NIH) / National Library of Medicine (NLM).
• ChEMBL: Licensed under Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) by the European Molecular Biology Laboratory (EMBL-EBI).
• FDA Data: Public domain data from the U.S. Food and Drug Administration.
• SureChEMBL: Patent-chemical mapping data from EMBL-EBI.
• PubMed: Bibliographic data from NIH/NLM.

7.3 User Content

You retain ownership of any original molecular structures or data you submit. By uploading content to OCSR.ai, you grant Rasayan Labs a non-exclusive, royalty-free license to process that content for the purpose of providing the Service (e.g., OCSR recognition, search, prediction). Auto-created compounds derived from your SMILES queries become part of our public chemical database.

8. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW:

• OCSR.AI IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, OR NON-INFRINGEMENT.
• RASAYAN LABS INC. SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING FROM YOUR USE OF THE PLATFORM, INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS, DATA, OR GOODWILL.
• OUR TOTAL LIABILITY FOR ANY CLAIMS ARISING FROM YOUR USE OF THE PLATFORM SHALL NOT EXCEED ONE HUNDRED U.S. DOLLARS (USD $100).
• WE DO NOT GUARANTEE UNINTERRUPTED OR ERROR-FREE SERVICE. THE PLATFORM MAY BE TEMPORARILY UNAVAILABLE DUE TO MAINTENANCE, UPDATES, OR FACTORS BEYOND OUR CONTROL.

9. Indemnification

You agree to indemnify and hold harmless Rasayan Labs Inc., its officers, directors, employees, and agents from any claims, liabilities, damages, losses, or expenses (including reasonable attorney fees) arising from your use of the Platform, violation of these Terms, or infringement of any third-party rights.

10. Governing Law & Dispute Resolution

These Terms are governed by and construed in accordance with the laws of the State of Delaware, United States, without regard to conflict of law principles. Any disputes arising from these Terms or your use of the Platform shall be resolved through binding arbitration administered by the American Arbitration Association (AAA) under its Commercial Arbitration Rules. The arbitration shall be conducted in English, and the seat of arbitration shall be Delaware, United States.

11. Termination

We reserve the right to suspend or terminate your access to the Platform at any time, with or without cause, and with or without notice. Reasons for termination may include violation of these Terms, abusive automated access, or any activity that threatens the integrity or availability of the Service. Provisions regarding intellectual property, limitation of liability, indemnification, and governing law survive termination.

12. Modifications

We reserve the right to modify these Terms at any time. Material changes will be posted on this page with an updated "Last updated" date. Your continued use of the Platform after modifications constitutes acceptance of the revised Terms. If you do not agree to the modified Terms, you must discontinue use of the Platform.

13. Severability

If any provision of these Terms is found to be invalid or unenforceable by a court of competent jurisdiction, that provision shall be enforced to the maximum extent permissible, and the remaining provisions shall continue in full force and effect.

14. Contact

For questions about these Terms of Service: