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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 81121Generated: October 23, 2026

6-Methoxy-3-pyridinylamine

6-METHOXYPYRIDIN-3-AMINE · 5-Amino-2-methoxy · 3-Amino-6-methoxypy · OTAVA-BB BB7020410079 · 6-methoxy-3-pyridinamin · 6-methoxypyridin-3-amin · 6-Methoxy-3-pyridylamine · 6-Methoxy-3-pyridinamine

https://huagongshe.com/en/chemical/81121

6-Methoxy-3-pyridinylamine molecular structure

Identifiers & Physical Properties

CAS No.6628-77-9
Molecular formulaC6H8N2O
Average molar mass124.14 g/mol
Monoisotopic mass124.06366288 g/mol
SMILESCOc1ccc(N)cn1
InChIKeyUUVDJIWRSIJEBS-UHFFFAOYSA-N
PubChem CID81121
ChEBICHEBI:194950
EC No.229-612-8
DTXSIDDTXSID20216484

Chemical & Physical Properties

XLogP1
Topological polar surface area48.1
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms9
Formal charge0
Complexity87
Kovats Retention Index12262165
Melting point29-31 °C (lit.)
Boiling point85-90 °C/1 mmHg (lit.)
Density1.575
Refractive indexn20/D 1.575(lit.)
Flash point>230 °F
Storage conditions2-8°C
SolubilityChloroform, Methanol (Slightly)Slightly soluble
Physical stateLiquid
pKa (acidity coefficient)4.33±0.10(Predicted)
ColorYellow-brown or red to very dark red
InChI1S/C6H8N2O/c1-9-6-3-2-5(7)4-8-6/h2-4H,7H2,1H3
InChIKeyUUVDJIWRSIJEBS-UHFFFAOYSA-N
SMILESCOc1ccc(N)cn1
CAS DataBase Reference6628-77-9(CAS DataBase Reference)
FDA UNIIATT39K5F0C
NIST Chemistry Reference5-Amino-2-methoxypyridine(6628-77-9)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H315-H319-H335
GHS precautionary statementsP261-P264-P270-P301+P312-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsXn,Xi
Risk statements (R)22-36/37/38
Safety statements (S)26-37/39-36
Water hazard class (WGK)3
RTECS numberUS1836000
Hazard classIRRITANTAcute Tox. 4 OralEye Irrit. 2Skin Irrit. 2STOT SE 3
Customs code29339900
Storage class10 - Combustible liquids

Safety & Regulations

GHS classificationWarningH302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (97.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 48 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard Classes and CategoriesAcute Tox. 4 (100%)Skin Irrit. 2 (100%)Eye Irrit. 2 (100%)STOT SE 3 (97.9%)
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
RTECS numberUS1836000
Customs code29339900
Risk statements (R)22-36/37/38
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXn,Xi
Safety statements (S)26-37/39-36
Hazard classIRRITANTAcute Tox. 4 OralEye Irrit. 2Skin Irrit. 2STOT SE 3
Storage class10 - Combustible liquids
Target organsRespiratory system
GHS hazard statementsH302-H315-H319-H335
GHS precautionary statementsP261-P264-P270-P301+P312-P302+P352-P305+P351+P338

Applications & Uses

Uses

5-Amino-2-methoxypyridine is used as a reagent in the synthesis of a novel series of thienopyrimidines as highly potent and selective PI3K inhibitors. 5-Amino-2-methoxypyridine is also used to synthesize EMPA (E521550); a novel high-affinity selective antagonist for the OX2 receptor.