HuagongsheHuagongshe Chemistry Print Report · For research reference only

HCID 13616640Generated: November 2, 2026

2H-Benzimidazol-2-one, 1,3-dihydro-5-hydroxy-

5-Hydroxy-1,3-dihydro-benzoimidazol-2-one · V 820-14 · 5-Hydroxy-1H-benzo[d]imidazol-2(3H)-one · 3-Dihydro-5-hydroxy-2H-benzimidazol-2-one · 1,3-Dihydro-5-hydroxy-2H-benzimidazol-2-one · 2H-Benzimidazol-2-one, 1,3-dihydro-5-hydroxy- · 5-Hydroxy-1,3-dihydro-2H-benzo[d]imidazol-2-one · 2H-Benzimidazol-2-one,1,3-dihydro-5-hydroxy-(9CI)

https://huagongshe.com/en/chemical/13616640

2H-Benzimidazol-2-one, 1,3-dihydro-5-hydroxy- molecular structure

Identifiers & Physical Properties

CAS No.	39513-24-1
Molecular formula	C7H6N2O2
Average molar mass	150.13 g/mol
Monoisotopic mass	150.04292744 g/mol
SMILES	O=c1[nH]c2ccc(O)cc2[nH]1
InChIKey	LVWUZNNDSSEHBV-UHFFFAOYSA-N
PubChem CID	13616640
ChEMBL	CHEMBL3218376
EC No.	171-848-8
DTXSID	DTXSID901263583

Chemical & Physical Properties

XLogP	0.8
Topological polar surface area	61.4
Hydrogen bond donors	3
Hydrogen bond acceptors	2
Rotatable bonds	0
Heavy atoms	11
Formal charge	0
Complexity	183
Melting point	260-262℃
Boiling point	191.1±19.0 °C(Predicted)
Density	1.422±0.06 g/cm3(Predicted)
Storage conditions	2-8°C, stored under nitrogen
pKa (acidity coefficient)	10.42±0.20(Predicted)
Appearance	Light brown to brown Solid
GHS pictogram	GHS07
Signal word	Warning
GHS hazard statements	H302-H315-H319-H335
GHS precautionary statements	P261-P305+P351+P338

Safety & Regulations

GHS classification	WarningH302 (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 (100%): 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)The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.
Hazard Classes and Categories	Acute Tox. 4 (100%)Skin Irrit. 2 (100%)Eye Irrit. 2A (100%)STOT SE 3 (100%)
Signal word	Warning
GHS pictogram	GHS07
GHS hazard statements	H302-H315-H319-H335
GHS precautionary statements	P261-P305+P351+P338

2H-Benzimidazol-2-one, 1,3-dihydro-5-hydroxy-

CAS No.

39513-24-1

Molecular formula

C7H6N2O2

Average molar mass

150.13 g/mol

Monoisotopic mass

150.04292744 g/mol

SMILES

O=c1[nH]c2ccc(O)cc2[nH]1

InChIKey

LVWUZNNDSSEHBV-UHFFFAOYSA-N

PubChem CID

13616640

ChEMBL

CHEMBL3218376

EC No.

171-848-8

DTXSID

DTXSID901263583

Chemical & Physical Properties

XLogP

0.8

Topological polar surface area

61.4

Hydrogen bond donors

Hydrogen bond acceptors

Rotatable bonds

Heavy atoms

Formal charge

Complexity

183

Melting point

260-262℃

Boiling point

191.1±19.0 °C(Predicted)

Density

1.422±0.06 g/cm3(Predicted)

Storage conditions

2-8°C, stored under nitrogen

pKa (acidity coefficient)

10.42±0.20(Predicted)

Appearance

Light brown to brown Solid

GHS pictogram

GHS07

Signal word

Warning

GHS hazard statements

H302-H315-H319-H335

GHS precautionary statements

P261-P305+P351+P338

Safety & Regulations

GHS classification

WarningH302 (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 (100%): 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)The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Hazard Classes and Categories

Acute Tox. 4 (100%)Skin Irrit. 2 (100%)Eye Irrit. 2A (100%)STOT SE 3 (100%)

Signal word

Warning

GHS pictogram

GHS07

GHS hazard statements

H302-H315-H319-H335

GHS precautionary statements

P261-P305+P351+P338