PubChem Compounds - Formula, Weight and SMILES by Name

Wayback Machine Scraper — Website History & Snapshots

alaudinburki/wayback-machine-snapshots

Extract every Wayback Machine (archive.org) snapshot of any URL, domain or subdomain — capture date, HTTP status, MIME type, content digest, byte size and direct snapshot links. Up to 50,000 rows, many URLs per run, $0.50 per 1,000 rows. No API key.

Search and extract chemical compound data from PubChem. Get molecular structures, properties, safety info, and bioactivity. No API key needed.

PubChem Compound Scraper - Chemical & Drug Data API

pink_comic/pubchem-compound-search

Scrape NIH PubChem chemical compound data by name, formula, SMILES, or CID. Get molecular weight, IUPAC, InChI, SMILES, XLogP, synonyms, and drug data for pharma, toxicology, and R&D workflows.

PubChem Compound Lookup — Chemistry API for Pharma R&D

azureblue/pubchem-compound-scraper

Look up chemical compounds in PubChem by name. Returns CID, molecular formula, weight, SMILES, InChI, IUPAC name, physicochemical properties, description and synonyms.

Look up chemical compounds from PubChem by name or CID — formula, weight, SMILES, InChI, IUPAC name, logP, TPSA & synonyms. Free keyless API. For chem, pharma & research.

PubChem Compounds Scraper - Chemical Properties

benthepythondev/pubchem-compounds-scraper

Look up public PubChem compounds by name and export CID, title, molecular formula, molecular weight, connectivity SMILES and source URL.

Search ChemicalBook for chemical compounds. Extract CAS numbers, molecular formulas, properties, safety data, MSDS links, and supplier info. Essential for chemistry research and procurement. No login or cookies. MCP-ready for AI agents. $10 per 1,000 records.

Search PubChem for chemical compound data — structures, properties, synonyms, biological activity. Chemistry research, pharma, toxicology.

Look up PubChem compounds by name or CID and return normalized identifiers, molecular formula, weight, SMILES, InChI, synonyms, and PubChem URLs via the public PUG REST API.

Search NIH PubChem for chemical compounds by name, formula, or CID. Returns molecular formula, weight, SMILES, InChI, log P, hydrogen bonds, and synonyms. 100M+ compounds. No login or cookies. MCP-ready for AI agents. $1.86 per 1,000 records.