Update README.md

README.md

@@ -2,4 +2,33 @@
 license: cc-by-nc-4.0
 size_categories:
 - 1M<n<10M
----
+tags:
+- chemistry
+- molecules
+- smiles
+- screening-compounds
+- building-blocks
+---
+# Molport Full In-Stock Database
+
+The **Molport Full In-Stock Database** contains SMILES strings and Molport IDs for all **5.7 million in-stock molecules**, covering both **screening compounds** and **building blocks** that are currently available for purchase.
+
+## Contents
+- **SMILES** – The molecular structure in [SMILES notation](https://en.wikipedia.org/wiki/Simplified_molecular-input_line-entry_system).
+- **SMILES_CANONICAL** – Canonicalized SMILES representation.
+- **MOLPORTID** – Unique Molport identifier for each compound.
+
+## Scope
+This dataset includes:
+- Includes *only* in-stock compounds at the time of each update.
+  - Covers both **screening compounds** and **building blocks** listed as in-stock at [molport.com](https://www.molport.com)
+  - Molecules available for purchase either:
+    - Directly via the [Molport website](https://www.molport.com), or
+    - By contacting our sales team at **sales@molport.com**.
+
+## Update Frequency
+- Files are updated on a **monthly basis** to reflect the latest in-stock availability.
+
+## Licensing
+- Licensed under **CC BY-NC 4.0** — you may use this dataset for internal, non-commercial purposes with attribution to Molport.
+- Commercial resale, redistribution, or inclusion in commercial offerings is **prohibited**.