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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 242946Generated: October 23, 2026

4-Isothiocyanatobenzoic acid

RARECHEM AL BO 0440 · 4-isothiocyanatobenzoate · 4-isothiocyanatobenzoicaci · 4-Carboxyphenyl isothiocyate · 4-ISOTHIOCYANATOBENZOIC ACID · P-ISOTHIOCYANATOBENZOIC ACID · 4-Carboxyphenyl isothiocyanate · Benzoic acid, 4-isothiocyanato-

https://huagongshe.com/en/chemical/242946

4-Isothiocyanatobenzoic acid molecular structure

Identifiers & Physical Properties

CAS No.2131-62-6
Molecular formulaC8H5NO2S
Average molar mass179.2 g/mol
Monoisotopic mass179.0040994 g/mol
SMILESO=C(O)c1ccc(N=C=S)cc1
InChIKeyRBEFRYQKJYMLCC-UHFFFAOYSA-N
PubChem CID242946
ChEMBLCHEMBL6141951
ChEBICHEBI:64464
EC No.671-008-5
DTXSIDDTXSID90175579

Chemical & Physical Properties

XLogP3.5
Topological polar surface area81.8
Hydrogen bond donors1
Hydrogen bond acceptors4
Rotatable bonds2
Heavy atoms12
Formal charge0
Complexity215
LogP (partition coefficient)2.44
Melting point220 °C
Boiling point361.6±25.0 °C(Predicted)
Density1.27
Refractive index1.6370 (estimate)
Flash point173℃
Storage conditionsKeep Cold
pKa (acidity coefficient)3.82±0.10(Predicted)
Solubility19mg/L(25 ºC)
CAS DataBase Reference2131-62-6(CAS DataBase Reference)
FDA UNIIG83CC6APM6
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH302-H312-H332
GHS precautionary statementsP261-P271-P304+P340-P312-P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501
Hazard symbolsXn,T
Risk statements (R)36/37/38-20/21/22
Safety statements (S)36/37/39-26
UN transport number2811
Hazard classKEEP COLD, LACHRYMATOR, TOXIC
Customs code29309090

Safety & Regulations

GHS classificationDangerH302 (66.7%): Harmful if swallowed [Warning Acute toxicity, oral]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, 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 3 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesAcute Tox. 4 (66.7%)
UN transport number2811
Customs code29309090
Risk statements (R)36/37/38-20/21/22
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXn,T
Safety statements (S)36/37/39-26
Hazard classKEEP COLD, LACHRYMATOR, TOXIC
GHS hazard statementsH302-H312-H332
GHS precautionary statementsP261-P271-P304+P340-P312-P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501

Applications & Uses

Uses

4-Carboxyphenyl isothiocyanate is a novel H2S-donor that promotes cardioprotective effects against ischemia/reperfusion injury through the activation of mitoKATP channels and reduction of oxidative stress.