- industrial
5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine
CAS 36267-71-7
![5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine chemical structure](https://pubchem.ncbi.nlm.nih.gov/image/imagefly.cgi?cid=61951&width=600&height=600)
Concern score
Not assessed — no hazard data yet.
5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine in plain language
Also known as 5,7-DIHYDRO-2-METHYLTHIENO(3,4-D)PYRIMIDINE · Popcorn pyrimidine · 5,7- DIHYDRO-2-METHYL thieno (3,4-D)PYRIMIDINE · Thienyl pyrimidine · UNII-56X379115Y · Xsuyizjjkikwfn-uhfffaoysa-n
Used in consumer products as a fragrance ingredient and a flavouring.
- Fragrance
- Flavouring
- We haven't assessed a concern score for this ingredient yet.
Regulation
No restrictions found. 5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine appears in these published regulatory listings.
- Found in consumer products
- Industrial
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Evidence & sources
No graded research studies for 5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
Reference links (1)
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.
Where it has been recorded
How often EPA CPDat has listed 5,7-Dihydro-2-methylthieno[3,4-d]pyrimidine in a product composition. These are source records, not Greenveil catalog products.
Named organisations
3
Typical roles
FragranceFlavouring