HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
Huagongshe Open Program:[email protected]AI access: llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.7.8
Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 607607Generated: November 3, 2026

2,4-Dimethyl 5-amino-3-methylthiophene-2,4-dicarboxylate

AKOS B000485 · AKOS NCG-0060 · ART-CHEM-BB B000485 · TIMTEC-BB SBB009175 · OTAVA-BB BB7020310252 · DIMETHYL 5-AMINO-3-METHYL-2,4-THIOPHENEDICARBOXYLATE · Dimethyl 5-amino-3-methylthiophene-2,4-dicarboxylate · 5-Amino-3-methylthiophene-2,4-dicarboxylic aciddiumethyl

https://huagongshe.com/en/chemical/607607

2,4-Dimethyl 5-amino-3-methylthiophene-2,4-dicarboxylate molecular structure

Identifiers & Physical Properties

CAS No.103765-33-9
Molecular formulaC9H11NO4S
Average molar mass229.26 g/mol
Monoisotopic mass229.04087901 g/mol
SMILESCOC(=O)c1sc(N)c(C(=O)OC)c1C
InChIKeyJNLHLSOENLVUIJ-UHFFFAOYSA-N
PubChem CID607607
EC No.672-036-0
DTXSIDDTXSID80345860

Chemical & Physical Properties

XLogP2.2
Topological polar surface area107
Hydrogen bond donors1
Hydrogen bond acceptors6
Rotatable bonds4
Heavy atoms15
Formal charge0
Complexity271
Melting point142-143°C
Boiling point346.9±37.0 °C(Predicted)
Density1.323±0.06 g/cm3(Predicted)
Storage conditions2-8°C
pKa (acidity coefficient)-0.58±0.10(Predicted)
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH335-H319-H315
GHS precautionary statementsP264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
Hazard symbolsXi
Risk statements (R)36/37/38
Safety statements (S)26-36
Hazard classIRRITANT
Customs code29349990

Safety & Regulations

GHS classificationWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 3 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Customs code29349990
Risk statements (R)36/37/38
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi
Safety statements (S)26-36
Hazard classIRRITANT
GHS hazard statementsH335-H319-H315
GHS precautionary statementsP264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

Applications & Uses

Uses

dimethyl 5-amino-3-methylthiophene-2,4-dicarboxylate is a useful reactant for the synthesis of fused pyrimidin-4-ones, and substituted thieno[2,3-d]pyrimidin-4(3H)-one derivatives.