Calcium dobesilate

Modify Date: 2026-07-02 07:16:31

Calcium dobesilate Structure
Calcium dobesilate structure
Common Name Calcium dobesilate
CAS Number 20123-80-2 Molecular Weight 418.410
Density N/A Boiling Point N/A
Molecular Formula C12H10CaO10S2 Melting Point N/A
MSDS Chinese USA Flash Point N/A

 Use of Calcium dobesilate


Calcium dobesilate, a vasoprotective, is widely used in chronic venous disease, diabetic retinopathy and the symptoms of haemorrhoidal attack in many countries.

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name calcium,2,5-dihydroxybenzenesulfonate
Synonym More Synonyms

 Calcium dobesilate Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description Calcium dobesilate, a vasoprotective, is widely used in chronic venous disease, diabetic retinopathy and the symptoms of haemorrhoidal attack in many countries.
Related Catalog
References

[1]. Allain H, et al. Safety of calcium dobesilate in chronic venous disease, diabetic retinopathy and haemorrhoids. Drug Saf. 2004;27(9):649-60.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Molecular Formula C12H10CaO10S2
Molecular Weight 418.410
Exact Mass 417.934143
PSA 212.08000
LogP 2.16540
InChIKey QGNBTYAQAPLTMX-UHFFFAOYSA-L
SMILES O=S(=O)([O-])c1cc(O)ccc1O.O=S(=O)([O-])c1cc(O)ccc1O.[Ca+2]
Storage condition room temp

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DB6127000
CHEMICAL NAME :
Benzenesulfonic acid, 2,5-dihydroxy-, calcium salt
CAS REGISTRY NUMBER :
20123-80-2
LAST UPDATED :
199512
DATA ITEMS CITED :
6
MOLECULAR FORMULA :
C12-H10-O10-S2.Ca
MOLECULAR WEIGHT :
418.42
WISWESSER LINE NOTATION :
WSO&R BQ EQ 2 &-CA-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
7061 mg/kg
TOXIC EFFECTS :
Autonomic Nervous System - other (direct) parasympathomimetic Behavioral - somnolence (general depressed activity) Behavioral - excitement
REFERENCE :
TOVEFN Toksikologicheskii Vestnik. (18-20 Vadkovskii per. Moscow, 101479, Russia) History Unknown Volume(issue)/page/year: (1),29,1994
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
7549 mg/kg
TOXIC EFFECTS :
Autonomic Nervous System - other (direct) parasympathomimetic Behavioral - somnolence (general depressed activity) Behavioral - excitement
REFERENCE :
TOVEFN Toksikologicheskii Vestnik. (18-20 Vadkovskii per. Moscow, 101479, Russia) History Unknown Volume(issue)/page/year: (1),29,1994
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
876 mg/kg
TOXIC EFFECTS :
Autonomic Nervous System - other (direct) parasympathomimetic Behavioral - somnolence (general depressed activity) Behavioral - excitement
REFERENCE :
TOVEFN Toksikologicheskii Vestnik. (18-20 Vadkovskii per. Moscow, 101479, Russia) History Unknown Volume(issue)/page/year: (1),29,1994
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
775 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
APFRAD Annales Pharmaceutiques Francaises. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1943- Volume(issue)/page/year: 30,415,1972
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
700 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #3509207
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
4979 mg/kg
TOXIC EFFECTS :
Autonomic Nervous System - other (direct) parasympathomimetic Behavioral - somnolence (general depressed activity) Behavioral - excitement
REFERENCE :
TOVEFN Toksikologicheskii Vestnik. (18-20 Vadkovskii per. Moscow, 101479, Russia) History Unknown Volume(issue)/page/year: (1),29,1994

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xi
Risk Phrases 36/37/38
Safety Phrases 26
HS Code 2924299090

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2908999090
Summary 2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

 Calcium dobesilateBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Binding affinity towards rat Gabra1 in an in vitro assay with cellular components mea...
Source: ChEMBL
Target: Gamma-aminobutyric acid receptor subunit alpha-1
External Id: CHEMBL5291800
Name: Binding affinity towards human ADRA2A in an in vitro assay with cellular components m...
Source: ChEMBL
Target: Alpha-2A adrenergic receptor
External Id: CHEMBL5291736
Name: Binding affinity towards human PGR in an in vitro assay with cellular components meas...
Source: ChEMBL
Target: Progesterone receptor
External Id: CHEMBL5291863
Name: Antagonist activity at human ADRA1A in an in vitro cell-based assay measured by fluor...
Source: ChEMBL
Target: Alpha-1A adrenergic receptor
External Id: CHEMBL5291731
Name: Binding affinity towards human ESR1 in an in vitro cell free assay (CRO assay) measur...
Source: ChEMBL
Target: Estrogen receptor
External Id: CHEMBL5291792
Name: Binding affinity towards human ADORA3 (agonistic activity) in an in vitro assay with ...
Source: ChEMBL
Target: Adenosine receptor A3
External Id: CHEMBL5291728
Name: Compound was evaluated for inhibition of human PDE3A in an in vitro cell free assay m...
Source: ChEMBL
Target: cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A
External Id: CHEMBL5291856
Name: Binding affinity towards human OPRM1 in an in vitro assay with cellular components me...
Source: ChEMBL
Target: Mu-type opioid receptor
External Id: CHEMBL5291855
Name: Agonist activity at human ADRA1A in an in vitro cell-based assay (CRO assay) measured...
Source: ChEMBL
Target: Alpha-1A adrenergic receptor
External Id: CHEMBL5291730
Name: Compound was evaluated for inhibition of human F2 in an in vitro cell free assay meas...
Source: ChEMBL
Target: Prothrombin
External Id: CHEMBL5291794
Total 29, Current Page 1 of 3
1
2
3

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Benzenesulfonic acid, 2,5-dihydroxy-, calcium salt (2:1)
calcium 2,5-dihydroxybenzenesulfonate
Calcium dobesilate
Nugatex
Dobesilat-Calciumsalz
Dobesilato calcico
Calcium Doxybensylate
calcium salt of 2,5-dihydroxybenzenesulfonic acid
Doxium
Calcii dobesilas
MFCD08457542
calcium 2,5-dihydroxy-phenylsulfonate
2,5-Dihydroxybenzenesulfonic acid calcium salt,205E,Calcium 2,5-dihydroxybenzenesulfonate
Dobesilate calcium
2,5-dihydroxybenzenesulfonic acid calcium salt
Calcium bis(2,5-dihydroxybenzenesulfonate)
Rasexinium
EINECS 243-531-5
Dexium
Toraxine

 Calcium dobesilate | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the CAS number of calcium,2,5-dihydroxybenzenesulfonate?
A: CAS number of calcium,2,5-dihydroxybenzenesulfonate is 20123-80-2.
Q: What is the safety information for calcium,2,5-dihydroxybenzenesulfonate?
A: Safety information for calcium,2,5-dihydroxybenzenesulfonate: 26.
Q: What is the InChIKey of calcium,2,5-dihydroxybenzenesulfonate?
A: InChIKey of calcium,2,5-dihydroxybenzenesulfonate is QGNBTYAQAPLTMX-UHFFFAOYSA-L.
Q: What is the molecular weight of calcium,2,5-dihydroxybenzenesulfonate?
A: Molecular weight of calcium,2,5-dihydroxybenzenesulfonate is 418.410.
Q: What is the SMILES notation of calcium,2,5-dihydroxybenzenesulfonate?
A: SMILES notation of calcium,2,5-dihydroxybenzenesulfonate is O=S(=O)([O-])c1cc(O)ccc1O.O=S(=O)([O-])c1cc(O)ccc1O.[Ca+2].
Q: What is the English name of calcium,2,5-dihydroxybenzenesulfonate?
A: The English name of calcium,2,5-dihydroxybenzenesulfonate is calcium,2,5-dihydroxybenzenesulfonate.
Q: What is the molecular formula of calcium,2,5-dihydroxybenzenesulfonate?
A: Molecular formula of calcium,2,5-dihydroxybenzenesulfonate is C12H10CaO10S2.
Q: What is the polar surface area (PSA) of calcium,2,5-dihydroxybenzenesulfonate?
A: Polar surface area (PSA) of calcium,2,5-dihydroxybenzenesulfonate is 212.08000.
Q: What are the uses of calcium,2,5-dihydroxybenzenesulfonate?
A: Main uses of calcium,2,5-dihydroxybenzenesulfonate: Calcium dobesilate, a vasoprotective, is widely used in chronic venous disease, diabetic retinopathy and the symptoms of haemorrhoidal attack in many countries.
Q: What are the storage conditions for calcium,2,5-dihydroxybenzenesulfonate?
A: Storage conditions for calcium,2,5-dihydroxybenzenesulfonate: room temp.

 Calcium dobesilatefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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