Research chemical
CAS Number: 42518-42-3
![2,4-Dichloro-5,6-dimethylthieno[2,3-d]pyrimidine molecular structure, CAS 42518-42-3](/structure-images/42518-42-3.png?v=struct-v3)
Product details
For laboratory research and professional procurement workflows.
PubChem CID
3645909
Exact Mass
231.962875
InChIKey
LDXCWOSUWRNYEW-UHFFFAOYSA-N
SMILES String
Cc1sc2nc(Cl)nc(Cl)c2c1C
No physical property values available.
XLogP
4.2
Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.
Heavy atom count
13
H-bond acceptors
2
H-bond donors
0
Rotatable bonds
0
Ring count
2
Aromatic rings
2
Topological polar surface area
25.78 Ų
Computed LogP
3.61
Structural features
2,4-Dichloro-5,6-dimethylthieno[2,3-d]pyrimidine (CAS 42518-42-3) is listed in the Advanced Chemicals portfolio, with molecular formula C8H6Cl2N2S and molecular weight 233. 12 g/mol.
Sourcing context
Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.
Research use context
Intended for research building-block and synthetic chemistry workflows; structure-derived tags include nitrogen-containing heterocycle.
Documentation needs
SDS signal word: Warning; hazard codes: H317, H319; For research use only.
Catalog navigation
Linked by recorded structural or research relationships, not interchangeable products. Check the exact CAS, specification and availability on the linked product page.
Procurement notes
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Use the quote panel for visible public options. Additional quantities or specifications can be reviewed by RFQ.
Purity, lot identity, and batch-specific documentation are confirmed before procurement decisions.
Supplier-issued COA and SDS can be requested before handling, storage, shipment, or procurement decisions.
Final quote depends on quantity, lead time, destination, and supplier confirmation.
2,4-Dichloro-5,6-dimethylthieno[2,3-d]pyrimidine is listed as in-stock / available for research-use sourcing review. Final availability, lot specification, and lead time are confirmed by RFQ.
The page shows a public reference price in the quote panel. Submit an RFQ to confirm current price, quantity breaks, lead time, and destination-specific shipping requirements.
Yes. Supplier-issued COA and SDS can be requested during the RFQ workflow. Lot-specific documents depend on supplier and batch confirmation.
Fragment-like structure rule
Yes
Lead-like structure rule
Yes
Drug-like structure rule
Yes
Structure family
n heterocycle ligand
Precious metal motif
No
Transition metal motif
No
Phosphine ligand motif
No
N-heterocycle motif
Yes
Boronic acid motif
No
Computed structure descriptors generated from molecular structure. These are not experimental physical property values, supplier specifications, SDS data, or bioactivity claims.
For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.
Preliminary Safety Reference
For supplier-issued SDS or COA, submit a documentation request.
Safety Reference / SDS RequestSupplier SDS reference cue; confirm supplier documentation before use.
Hazard statements: H317, H319
Supplier SDS hazard code reference; confirm full text in supplier documentation.
Precautionary statements: P280, P305+P351+P338
Supplier SDS precautionary code reference; confirm full text in supplier documentation.
Shipment review: Required
Certificate of Analysis (COA): By request
Supplier Safety Data Sheet (SDS): By request
Purity and pack size confirmation: By request
Availability and lead time review: Confirmed by RFQ
Shipment documentation review: By request
For supplier-issued documentation by request, use the RFQ actions on this page.Review preliminary safety reference
Additional text reference cues are not available for this catalog entry.
Non-public references are shown as text only and do not imply equivalence, availability, or shared use.