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Calcium dobesilate

Product Name
Calcium dobesilate
CAS No.
20123-80-2
Chemical Name
Calcium dobesilate
Synonyms
205-E;doxium;dexium;Calciumdobesilat;CALCIUM DOBESILATE;5-benzenesulfonate;calcium dihydroxy-2;Qiangbenhuangsuangai;Dobesilate calcium salt;CALCIUMDOBESILATECAPSULE
CBNumber
CB5713183
Molecular Formula
2C6H5O5S.Ca
Formula Weight
418.41
MOL File
20123-80-2.mol
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Calcium dobesilate Property

Melting point:
>300° (dec)
storage temp. 
Inert atmosphere,Room Temperature
solubility 
H2O: soluble15mg/mL, clear
form 
powder
color 
white to beige
Stability:
Hygroscopic
InChIKey
QGNBTYAQAPLTMX-UHFFFAOYSA-L
CAS DataBase Reference
20123-80-2(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26
WGK Germany 
3
HazardClass 
IRRITANT
Toxicity
LD50 in mice: 700 mg/kg (Esteve-Subirana)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
SML0488
Product name
Dobesilate Calcium
Purity
≥98% (HPLC)
Packaging
10mg
Price
$76.2
Updated
2024/03/01
Sigma-Aldrich
Product number
SML0488
Product name
Dobesilate Calcium
Purity
≥98% (HPLC)
Packaging
50mg
Price
$310
Updated
2024/03/01
Biosynth Carbosynth
Product number
FC40877
Product name
Calcium dobesilate monohydrate
Packaging
5G
Price
$600
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
API0010514
Product name
2,5-DIHYDROXY-BENZENESULFONIC ACID, CALCIUM SALT (2:1)
Purity
95.00%
Packaging
500MG
Price
$637.5
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
API0010514
Product name
2,5-DIHYDROXY-BENZENESULFONIC ACID, CALCIUM SALT (2:1)
Purity
95.00%
Packaging
1G
Price
$875
Updated
2021/12/16
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Calcium dobesilate Chemical Properties,Usage,Production

Description

Calcium dobesilate is a vasoprotective. It is the calcium salt of dobesilic acid. It is a synthetic molecule with the ability to reduce capillary permeability in the body. In Switzerland the drug is sold by the pharmaceutical company OM Pharma under the trade name of Doxium in capsules containing 500 mg of active ingredient.
Calcium dobesilate is indicated in states of fragility and altered capillary permeability, e.g. diabetic retinopathy, chronic venous disease and hemorrhoidal disease. In combination with lidocaine or with lidocaine and dexamethasone, the drug enters the composition of preparations for the therapy of hemorrhoidal disease. In association with potassium hydrodex-sulfate[citation needed] enters the composition of adjuvant gels in the treatment of varicose veins. The efficacy of calcium dobesilate has been described in patients with microangiopathies such as diabetic retinopathy and diabetic nephropathy.

Chemical Properties

White or almost white, hygroscopic powder.

Originator

Doxium,Carrion,France,1971

Uses

Calcium dobesilate is an antioxidant that has been used to treat diabetic retinopathy, in which it slows progression of the disease during long-term oral treatment by reducing microvascular permeability, leading to improved visual acuity. It not only acts as an antioxidant but also stimulates endothelial production of nitric oxide.

Uses

Dobesilate calcium has been used to study its interference in different in vitro assay systems for the determination of creatinine, uric acid, cholesterol, and triglycerides.

Indications

Calcium dobesilate (CaD) is a widely prescribed veno-tonic drug for CVI, diabetic retinopathy, and the symptoms of hemorrhoid attacks.
Calcium dobesilate is also almost the only one angioprotective drug that recently remains the object of interest in treatment of diabetic retinopathy including clinical studies (Leal et al. 2010, Einarsdottir & Stefansson, 2009, Ribeiro et al., 2006), and even it was used as a standard for determination of the particular activity of a traditional Chinese herbal medicine preparation (Luo et al. 2009).

Manufacturing Process

To an ether solution of 108 grams 1,4-benzoquinone, maintained below 0°C, one adds an also very cold solution of 102 grams of pure calcium bisulfite as a 50% solution in distilled water. The addition is made carefully so as to maintain a very low temperature (0° to 4°C) in the vessel, and under stirring so as to mix the water and ether phase.
At the end of the addition, an almost colorless ether layer swims on the surface of the strongly colored water layer. After removal of the ether layer, the water layer is concentrated to dryness under vacuum and a stream of an inert gas. An earthy precipitate is formed, which after recrystallization yields 100 grams of hydroquinone calcium sulfonate, which decomposes without melting above 250°C.
The product consists of very small crystals having a powdery aspect and a pink color which deepens on contact with air. This product is very soluble in water and alcohol, and insoluble in ether.

Therapeutic Function

Vasodilator

General Description

Dobesilate calcium belongs to the family of fibroblast growth factor (FGF) inhibitors.

Biochem/physiol Actions

Dobesilate Calcium is a vasoprotectant used as a treatment for chronic venous disease, diabetic retinopathy and other microvascular disorders. Its mechanism of action is not fully understood. It appears that dobesilate calcium increases endothelial nitric oxide levels by enhancing the activity of nitric oxide synthase and decreasing capillary hyperpermeability. Also in diabetic retinopathy dobesilate calcium prevents the blood-retinal barrier breakdown induced by diabetes by restoration of the tight junction protein, and decreasing the leukocyte adhesion to retinal vessels.

Side effects

Fever
Skin reactions
Arthralgia(joint pain)
Gastrointestinal disorders
Agranulocytosis (lower white blood cell count)

Mode of action

Calcium dobesilate is a vaosactive drug used in the management of diabetic retinopathy and venous insufficiency. Calcium dobesilate's mechanism of action is thought to be related to decreasing tissue edema by altering vascular permeability and platelet aggregation. Mentes and colleagues randomized 29 patients with symptomatic hemorrhoids to calcium dobesilate and a high-fiber diet or to a highfiber diet alone. Eighty-six percent of patients treated with calcium dobesilate described cessation of bleeding and improvement in perianal irritation.

Calcium dobesilate Preparation Products And Raw materials

Raw materials

Preparation Products

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Calcium dobesilate Suppliers

Jiangxi Boya Seehot Pharmaceutical Co., Ltd.
Tel
0794-7053660
Fax
0794-7053386
Email
sales1@boyaseehot.com
Country
China
ProdList
21
Advantage
58
Hubei xingongli Chemical Co., Ltd
Tel
027-59106151 15172325309
Fax
027-59503710
Email
1400858877@qq.com
Country
China
ProdList
9943
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
TAIYUAN RHF CO.,LTD.
Tel
+86 351 7031519
Fax
+86 351 7031519
Email
sales@RHFChem.com
Country
China
ProdList
2338
Advantage
56
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Pure Chemistry Scientific Inc.
Tel
001-857-928-2050 or 1-888-588-9418
Fax
001-617-206-9595
Email
sales@chemreagents.com
Country
United States
ProdList
10186
Advantage
62
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
chenyj@titansci.com
Country
China
ProdList
14103
Advantage
59
XiaoGan ShenYuan ChemPharm co,ltd
Tel
15527768850
Email
1791901229@qq.com
Country
China
ProdList
8844
Advantage
52
Z IntellecChem& Tech. Co., Ltd
Tel
15050866711
Fax
QQ:2677337387
Email
saleszchem@163.com
Country
China
ProdList
110
Advantage
62
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View Lastest Price from Calcium dobesilate manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
Calcium dobesilate 20123-80-2
Price
US $0.00/Kg/Drum
Min. Order
1KG
Purity
99%
Supply Ability
1000kg
Release date
2022-01-11
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Calcium dobesilate 20123-80-2
Price
US $100.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-04-23
Hebei Yanxi Chemical Co., Ltd.
Product
Calcium dobesilate 20123-80-2
Price
US $50.00-46.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20 tons
Release date
2023-09-22

20123-80-2, Calcium dobesilateRelated Search:


  • CALCIUM DOBESILATE
  • Calcium Dobesilate Mnohydrate
  • CALIUM DOBESILATE MONOHYDRATE
  • CALCIUM DOBESILATE 1-HYDRATE
  • 2,5-Dihydroxybenzenesulfonic acid, calcium salt
  • 2,5-dihydroxy-benzenesulfonic aci calcium salt
  • dexium
  • doxium
  • hydroquinone calcium sulfonate
  • CALCIUMDOBESILATECAPSULE
  • 1,2-dihydroxybenzolsulfonic acid calcium salt (2:1)
  • Benzenesulfonic acid, 2,5-dihydroxy-, calcium salt (2:1)
  • 205-E
  • Bis(2,5-dihydroxybenzenesulfonic acid)calcium salt
  • Bis[2,5-dihydroxybenzenesulfonic acid]calcium salt
  • CalciuM Dobesilat Monohydrate
  • Calcium bis(2,5-dihydroxybenzenesulfonate)
  • 2,5-dihydroxybenzoic acid calciuM
  • Qiangbenhuangsuangai
  • Calcium 2,5-dihydroxybenzenesulfonate
  • Calciumdobesilat
  • 5-benzenesulfonate
  • calcium dihydroxy-2
  • Caium Dobesilate Mnohydrate
  • Calcium dobesilate USP/EP/BP
  • CAS 20123-80-2 Calcium dobesilate
  • Dobesilate calcium salt
  • 20123-80-2
  • 20123-20-8
  • 2C6H5O5SCa
  • C6H5O5S2CaC12H10Ca2
  • C12H10CaO10S2
  • C6H5O5S2CaC12H10Ca2O10S2
  • 2C6H5O5SCaH2O
  • C12H10CaO10S2H2O
  • C6H5O5S2Ca
  • C12H12CaO11S2
  • C12H10CaO10S2xH2Oanhydrous
  • API