5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic Acid suppliers and prices

Formula: C₈H₆N₂O₃S
CAS number: 101667-97-4
Molar mass: 210.21 g/mol

Found at 1 store we track

$223 per gram

1 gram for 200.00 EUR, about $223

At CymitQuimica, Spain · Grade not stated

View at CymitQuimica

Lowest total price

93.00 EUR for 250 milligrams, about $104

Works out at $416 per gram

At CymitQuimica, Spain

View at CymitQuimica

Only one store we read sells 5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic Acid so far. Sell it, or know a store that does? Tell us.

Every price we found

2 prices from 1 store, checked November 1, 2026. In stock from $223 to $416 per gram, depending on pack size and store. Each one is worked out per kilogram, so a small bottle and a big bag compare fairly.

SortShow prices per Currency

Pack	Store	Grade and form	Price per unit	Link
1 gram200.00 EUR, about $223	CymitQuimicaSpain	Lowest priceGrade not stated	$223 per gram
250 milligrams93.00 EUR, about $104	CymitQuimicaSpain	Grade not stated	$416 per gram

Cite these pricesA ready sentence and reference for your report

For your report

As of November 1, 2026, the lowest store price for 5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid was $223 per gram, converted to US dollars: 1 gram for 200.00 EUR at CymitQuimica.

Reference

APA, 7th edition

ChemicalSuppliers.com. (2026, November 1). 5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid suppliers and prices. Retrieved November 1, 2026, from https://www.chemicalsuppliers.com/5-methyl-4-oxo-3h-4h-thieno-2-3-d-pyrimidine-6-carboxylic-acid/

ACS

5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic Acid Suppliers and Prices. ChemicalSuppliers.com, November 1, 2026. https://www.chemicalsuppliers.com/5-methyl-4-oxo-3h-4h-thieno-2-3-d-pyrimidine-6-carboxylic-acid/ (accessed 2026-11-01).

BibTeX

@misc{chemicalsuppliers-5-methyl-4-oxo-3h-4h-thieno-2-3-d-pyrimidine-6-carboxylic-acid,
  author  = {{ChemicalSuppliers.com}},
  title   = {{5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic acid} suppliers and prices},
  year    = {2026},
  date    = {2026-11-01},
  url     = {https://www.chemicalsuppliers.com/5-methyl-4-oxo-3h-4h-thieno-2-3-d-pyrimidine-6-carboxylic-acid/},
  urldate = {2026-11-01},
  note    = {Prices checked November 1, 2026}
}

Prices change every day, so each line carries the date they were checked.

Making a solution?

Pick the strength and how much you need. We work out the grams of 5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic Acid and what they cost at the cheapest store we track.

Strength

Amount of solution

You need: 210 milligrams; of 5-methyl-4-oxo-3H,4H-thieno[2,3-d]pyrimidine-6-carboxylic Acid, molar mass 210.21 g/mol
That much costs: $46.97; $469.69 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $103.90; 1 pack of 250 milligrams at CymitQuimica; View at CymitQuimica

Weigh it out, dissolve it in less water than you need, then top up to the full amount.

Similar chemicals

Sold by

CymitQuimica

Chemical identity

Formula, molar mass, CAS number, InChIKey and the official PubChem record

Formula: C₈H₆N₂O₃S
Molar mass: 210.21 g/mol
CAS number: 101667-97-4
InChIKey: CYNGLBSDKJIAOD-UHFFFAOYSA-N
Official record: PubChem 405802

How we compare: each store's own price, turned into US dollars at European Central Bank rates of 2026-10-30, then divided by the pack size. Shipping and tax are not included.