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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 68092Generated: October 23, 2026

Isoquinoline-1-carboxylic acid

TRIMETHOXYBORANE · 1-ISOQUINOLINECARBOXYLIC ACID · rimethoxyboron · METHYL BORATE-11B · Isoquinaldic acid. · BORON TRIMETHOXIDE · RARECHEM AL BO 1345 · 1-Carboxyisoquinoline

https://huagongshe.com/en/chemical/68092

Isoquinoline-1-carboxylic acid molecular structure

Identifiers & Physical Properties

CAS No.486-73-7
Molecular formulaC10H7NO2
Average molar mass173.17 g/mol
Monoisotopic mass173.04767846 g/mol
SMILESO=C(O)c1nccc2ccccc12
InChIKeyXAAKCCMYRKZRAK-UHFFFAOYSA-N
PubChem CID68092
ChEMBLCHEMBL1650606
EC No.207-639-6
DTXSIDDTXSID60197566

Chemical & Physical Properties

XLogP2.1
Topological polar surface area50.2
Hydrogen bond donors1
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms13
Formal charge0
Complexity205
LogP (partition coefficient)-0.53
Melting point164 °C (dec.)(lit.)
Boiling point68-69 °C(lit.)
Density0.932 g/mL at 20 °C(lit.)
Vapor density3.59 (vs air)
Refractive indexn20/D 1.358(lit.)
Flash point8 °F
Storage conditionsKeep in dark place,Sealed in dry,Room Temperature
SolubilitySoluble in water
Physical statepowder to crystal
pKa (acidity coefficient)1.09±0.10(Predicted)
ColorLight orange to Yellow to Green
Merck13,9784
BRN129177
InChI1S/C10H7NO2/c12-10(13)9-8-4-2-1-3-7(8)5-6-11-9/h1-6H,(H,12,13)
InChIKeyXAAKCCMYRKZRAK-UHFFFAOYSA-N
SMILESOC(=O)c1nccc2ccccc12
CAS DataBase Reference486-73-7(CAS DataBase Reference)
FDA UNIIB8AHM99SW2
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P280a-P304+P340-P305+P351+P338-P405-P501a
Personal protective equipment (PPE)Eyeshields, Gloves, type N95 (US)
Hazard symbolsXn,Xi,T,F
Risk statements (R)11-21-23/25-36/37/38-39/23/24/25-23/24/25-10
Safety statements (S)22-24/25-45-36/37/39-27-16-36-26-36/37-25-23
UN transport numberUN 2416 3/PG 2
Water hazard class (WGK)3
RTECS numberED5600000
F21
Hazard classIRRITANT
Customs code29334990
Storage class11 - Combustible Solids

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 7 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%)
F21
Personal protective equipment (PPE)Eyeshields, Gloves, type N95 (US)
Water hazard class (WGK)3
RTECS numberED5600000
UN transport numberUN 2416 3/PG 2
Customs code29334990
Risk statements (R)11-21-23/25-36/37/38-39/23/24/25-23/24/25-10
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXn,Xi,T,F
Safety statements (S)22-24/25-45-36/37/39-27-16-36-26-36/37-25-23
Hazard classIRRITANT
Storage class11 - Combustible Solids
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP261-P280a-P304+P340-P305+P351+P338-P405-P501a

Applications & Uses

Uses

Isoquinoline-1-carboxylic acid was used in the preparation of 4-cyano-3-ethoxy-1-hydroxy-5,6,7,8-tetrahydroisoquinoline.