30 / 30
chemicals found in a 200-line procedure, with none invented.
Paste a paper. Get the order list.
Molarity reads a paper's experimental section, works out which chemicals your lab needs to buy, and finds real supplier listings for each one. Nothing is ordered until a chemist approves it.
No card. One free trial per email: 5 papers, 20 chemicals, 40 supplier searches. The example opens without signing up at all.
Example paper
A published Organic Syntheses procedure 2023, vol. 100, p. 136
- Read
- 30
- To buy
- 10
- Make at the bench
- 5
- Lab stock
- 15
What it suggests buying
Apollo Scientific USA
PyrrolidineCAS 123-75-1
100 mL
$21.00
A2B Chem LLC
Et3NCAS 121-44-8
50 g
$57.00
Enamine
TEMPOCAS 2564-83-2
2 × 25 g
$54.00
Set aside as lab stock
- heptane
- ethyl acetate
- silica gel
- brine
The problem
A methods section can name thirty chemicals, and only some of them need buying. The rest are already on the shelf, get made at the bench, or are the product you are trying to make.
Each one you do buy has to be matched by CAS number (its unique chemical ID), checked for purity grade, and found in a pack size you can use. Some suppliers will not give a price until you phone them.
For a chemist ordering twenty compounds a week, we estimate this takes most of a day, every week.
It reads what you paste
Every chemical, with the sentence it came from, so you can check it against the paper.
It knows what not to buy
Bench preparations and ordinary lab stock are kept off the order instead of sent to a supplier.
It shows the arithmetic
How many packs cover the amount you need, the price per gram, and why one offer was suggested over a cheaper one.
What we have actually checked
A wet-lab chemist graded it by hand, against criteria fixed before any result was scored.
2 of 15
supplier matches opened and checked against the supplier's own page, of the fifteen compounds the evaluation sent to a supplier. Too few to claim an accuracy rate.
$84.85
a price an ordinary web scraper invented for a discontinued product. The marketplace route returns a real listing instead.
Old scraper (invented)$84.85
Enamine, 25 g$27
What it does not do
Not in the product Not built yet
- PDF upload
- Placing orders
- Calling suppliers for quotes
- Delivery tracking
After the trial Not fixed yet
What a seat costs is not settled, and a number we would have to take back is worse than saying so: it will be priced with the first few labs rather than guessed at now.
Every supplier lookup costs us a marketplace call, so a seat will carry a real ceiling on them rather than an unlimited one.
Your data
A paper you have not published yet stays yours. No other trial can see it: what you paste, and everything the tool makes of it, is visible to you in your browser and to the person who runs this service, and to nobody else using it.
The text goes to Anthropic's API, which is what picks the chemicals out of it, and it is never sent to the chemical marketplaces. Press Delete my trial now in the app and your details, your pasted text and every result go from this app straight away, without asking anyone. It cannot reach the copy already sent to Anthropic, which Anthropic deletes within 30 days. A trial and everything in it are deleted after 30 days in any case.
The privacy notice is the full version: what is collected, who else processes it, where it goes, and what you can ask us for.