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Sodium metabisulfite

BGC Id:950131551832
CAS No:7681-57-4
Synonyms:disodium metabisulfite ; sodium pyrosulfit ; natrium metabisulfurosum ; fertisilo ; disodiumpyrosulphite ; disodium disulfite ; natriummetabisulfit ; disodium pyrosulfite ; sodium pyrosulphite ; sodium dissulfite ; disodium disulphite ; sodiummetabisufite ; sodium disulfite ; e223 ; sodium pyrosulfite ; sodium disulphite
Molecular Formula:2Na.O5S2
Molecular Weight:190.10
EINECS:231-673-0
Structural Formula

Verified providers in 2026

The following 20 notable providers have been checked and can be recommended.
Chemical-Suppliers
Shandong Chuangying Chemical
Appearance White or little yellow powder Na2S2O5 96.5% min. Iron (Fe) ≤ 0.01% Insolubles ≤ 0.05% Arsenic(As) ≤ 0.0001
Chemical-Suppliers
Sancai Industry
NA2S2O5 96.5%MIN SO2 65%MIN IRON 0.005%MAX WATER INSOLUBLE MATTER 0.05%MAX HEAVY METALS AS PB 0.001%MAX ARSENIC 0.0001%MAX PH 4-4.5

Chemical-Suppliers
Leap Chem
Molecular Formula: 2Na.O5S2 Molecular Weight: 190.11 Hazard Symbols: Xn,Xi UN Number: 3260 WGKGermany: 1 PackingGroup: III HS Code: 2832 10 00

The last intensive check and update was carried out on 2026/03/01.

Identify

Synonyms:
disodium metabisulfite ; sodium pyrosulfit ; natrium metabisulfurosum ; fertisilo ; disodiumpyrosulphite ; disodium disulfite ; natriummetabisulfit ; disodium pyrosulfite ; sodium pyrosulphite ; sodium dissulfite ; disodium disulphite ; sodiummetabisufite ; sodium disulfite ; e223 ; sodium pyrosulfite ; sodium disulphite
CAS:
7681-57-4
EINECS:
231-673-0
Molecular Formula:
2Na.O5S2
MDL:
MFCD00167602
SMILES:
CCN1C=C[N+](=C1)C.C(F)(F)(F)S(=O)(=O)[O-]

Properties

Molecular Weight:
190.10 g·mol−1
Density:
1.48 g/cm3
Melting point:
>170 °C (begins at 150 °C)
Solubility:
water: 54 g/100 ml
Physical Description:
white crystalline powder with a sulfur smell

Suppliers

Hädener Rohstoffe GmbH

Hädener Rohstoffe GmbH is a leading Swiss distributor founded in 1987 with main activities in the market of life science, food ingredients, industrial chemicals and cosmetic raw materials. Beside our headquarter in St. Gallen we have an office in Shanghai, warehouses in Rotterdam and St. L-Malic acid will be also provided by us. Gallen with a logistical network serving the Swiss and EU market. Hädener Rohstoffe GmbH is a partner to the raw material processing industry, developing tailor made solutions, offering a coh ...
Country: Switzerland   Phone: +41-(0)71223 5218   Telefax: +41-(0)71223 5219

Shandong Chuangying Chemical Co., Ltd.

Country: P.R.China
Phone: +86 18853181302
Shandong Chuangying Chemical Co., Ltd. is located in the new material trading center of Tianqiao District, Jinan City, Shandong Province. It mainly deals in acrylates, alcohols, phenenes, ethers, esters, alkanes, amines, plasticizers, resins and emulsions. Chemical products such as chemicals, and established long-term and stable cooperative relations with many manufacturers and agents. Shandong Chuangying Chemical Co., Ltd. has a full range of products at reasonable prices. We provide DL-3-Hydroxybutyric acid sodium salt as well. T ...

VMP Chemiekontor GmbH

The VMP chemistry Kontor GmbH grew out of a desire to return to the back, which we were already years ago. A successful family business and on market estimates of where the customer is paramount. We are seller of DL-Methionine. The founders and some employees of the VMP are all former "Family" of a successful trader chemicals. We are a traditionally acting trading company for chemical raw materials based in Siegburg, which was established on 01.07.2012, and sees itself as a partner to raw materials processi ...
Country: Germany
Phone: +49 2241 265660
Telefax: +49 2241 26566-99

AXO Industry SA

Distributor of pharmaceutical, nutraceutical, cosmetic and food raw materials. The raw material in bulk or in tailor-made packings.
Country: Belgium   Phone: +32 10 24 67 28   Telefax: +32 10 24 59 12

Zyntex Ltd

Company type: Bulk chemical supplier
Country: Türkiye
As Zyntex, we have been providing reliable solutions at global standards in the pharmaceutical raw materials and specialty chemicals sector since our establishment. The mission of contributing to human health and supporting technological progress is at the center of our activities. Our wide range of products ranges from pharmaceutical active ingredients to food supplements, from feed additives to innovative chemical products. Our Quality and Trust-Oriented Approach Zyntex ...

Shanghai Mintchem Development Co., Ltd.

We sell Alkyl salicylate as well. Shanghai Mintchem Development Co., Ltd. manufactures and supplies inorganic fluoride chemicals and flame retardants (IPPP, APP, micron magnesium hydroxide, micron aluminum hydroxide, etc) Metal chemicals ( bismuth salts, Copper salts, Chrome salts Tin salts, Nickel salts, Manganese salts, Zinc salts series, and Iron chemicals), Flux water treatment chemicals (sulfur, Boron, heavy metal), Organic Catalysts, Organic compounds ,Oil and oilfield chemicals, Air treatment chemicals ...
Company type: Leading producer
Country: P.R.China
Phone: +86-21-68451592
Telefax: +86-21-68450923

OPQ Chemical Co., Ltd

Company type: Producer
OPQ Chemical is a high tech enterprise,located in China Spring city(Jinan).Mainly engages in the development and production of phenolic and quinones,additive agents, dying stuffs, and pesticide intermediates,and also has been involved in other fine chemicals,cosmetic raw materials etc.And actively practices the business philosophy of "MY heart, let you feel more assured". We supply our chemical product Cinnamaldehyde. OPQ has international advanced production technology and equipment, the company's marketing network thro ...
Country: P.R.China   Phone: +86-17615852982  

Simagchem Corporation

Company type: Bulk chemical producer
Country: P.R.China
Phone: +86 592 2680 277
Telefax: +86 592 2680 237
Your partner in China for chemicals business. Expertize in supplies and sources of fine, specialty, pharmaceutical chemicals and intermediates. WE offer high quality products and JIT services with instant market intelligence in China, custom synthesis in our 3 production sites, famous principals as Brenntag, Univar,S inopec, Grace, Petrobras, DKSH, Formitex, Evonik, Merck, TCI, Sanofi, Chemo with creditable reputation and business cooperation. Additionally 3,4-Difluorobenzenesulfonyl chloride is supplied by us.

Sancai Industry Co.,Ltd.

Sancai Industry is involved in supplying of fine chemicals, food and nutrition,personal care, medical intermediate etc, We can also customize chemicals for our customers.Taking advantage of innovative technology and excellent talents and through over 15 years of development,We have stabled good relation with clients in and abroad. In order to be competitive on the market. We have established the global marketing network, independent research center, testing center, and key ...
Company type: Leading producer
Country: P.R.China
Phone: +86-531-88913079
Telefax: +86-531-88913079

Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)

Company type: Producer
Hangzhou Meite Industry Co., Ltd. is an international high-tech enterprise founded in 1998, specialized in R&D and manufacture on intermediates, medicines, agrochemical, dyestuff, flavor, fragrance, cosmetic, natural extracts series products. We have an efficient R&D centre, get a strong technical support from Zhejiang University of Technology and Institute of Chemistry, Wuhan Branch, Chinese Academy of Sciences. Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd) also offers Cytarabine hydrochloride. Our factory Hangzhou Meite Chemical Co.,Ltd. is located in Fi ...
Country: P.R.China   Phone: +86 571 88026825   Telefax: +86 571 88282557

Hangzhou Zhongqi Chem Co., Ltd

Company type: Leading producer
Country: P.R.China
Phone: +86-571-86976032
Telefax: +86-571-86972162
Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Hangzhou Zhongqi Chem Co., Ltd is a seller of Formoterol. Our advantage : 1.We do not simply provide chemicals , we provide chemical solutions and expertise; 2.We have trained, highly effective team to solve the problem at the first time; 3.Our QMS (quality management system) ensures the product quality strictly; 4.Strong research and deve ...

Lori Industry Co., Ltd

Lori industry Co., Ltd was established in 2002 years. It is a large-scale manufacturer integrating R&D, produce and sales. We are seller of p-Hydroxycinnamic acid. Our products mainly cover fine chemicals, organic intermediates, biological buffers, agricultural fertilizers and other chemicals . Among them, the sales proportion of organic chemicals and agricultural fertilizers is at the forefront of the domestic market. From 2013 to 2022 years, through cooperation with foreign trade companies, customers visitation, ...
Company type: Bulk chemical producer
Country: P.R.China
Phone: +86-13011713125
Telefax: +86-13011713125

Dayang Chem (Hangzhou) Co.,Ltd.

Company type: Leading producer
Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. We are seller of 2-Chloro-6-fluorophenylchlorooxime. We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in ...
Country: P.R.China   Phone: +86-571-88938639   Telefax: +86-571-8893-8652

Nantong Xindao Biotech Ltd

Company type: Leading producer
Country: P.R.China
Phone: +86 19033786557
XINDAO is a world leading biochemical company formed by a professional team.The company specializes in the production, development and sales of animal health, crop science, nutrition and health care, skin care raw materials, fine chemicals and other products. At present, more than 300 kinds of products can be mass produced, which are widely used in chemical industry, health, agriculture, animal husbandry, biochemical research and other high-end fields. XINDAO pays attention ...

Carbone Scientific Co., Ltd.

Carbone scientific is located at London, UK. We are supplier of Hexafluoropropylene oxide. We are mainly engaged in the marketing development, R&D, technical support and service. Carbone scientific provides fine chemicals, pharmaceutical intermediates, and active pharmaceutical ingredients to the global marketplaces. Our aim is to make those most popular products available to these pharmaceutical and biotech companies, research organizations and university labs worldwide. Our online catalogue has already listed over 50 ...
Company type: Supplier
Country: U.K.
Phone: +44 (0)203 769 4441 ext 1
Telefax: +44 (0)203 769 4441 ext 2

Xingrui Industry Co., Limited

Company type: Leading producer
Xingrui Industry CO., LTD. is a professional manufacturing enterprise integrating R&D, production and sales. We sell Josamycin as well. The products involved fine chemicals, pharmaceutical intermediates, dye intermediates, cosmetic raw materials and so on. The company is ranked among the outstanding producers in the fine chemical industry. Xingrui Industry always strive to be the most reliable partner of our customers, and strive to build a customer-trusted, socially respected, world-class fine chemi ...
Country: P.R.China   Phone: +86-531-88980365   Telefax: +86-531-88980365

Xiamen Equation Chemical Co.,Ltd

Company type: Bulk chemical producer
Country: P.R.China
Phone: +86 592 6515854
Telefax: +86 592 6515854
Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. We are committed to provide experienced high quality product and JIT performance to benefit our customers.

Skyrun Industrial Co., Ltd.

Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. We sell 2,7-Dichlorofluorene as well. Our working range can be start from small amount in research stage to big bulk for industrial produc ...
Company type: Leading producer
Country: P.R.China
Phone: +86-576-84015261
Telefax: +86-576-84015261

Leap Chem Co., Ltd

Company type: Bulk and laboratory supplier
LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...
Country: P.R.China   Phone: +852-30606658  

BuGuCh & Partners

Company type: Producer
Country: Germany
We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength. Our products range from natural gas, oil and basic chemi ...

Safety Information

Hazard Classes:
Risk Codes:
22-31-41-36/37/38-52 (R)
Safety Codes:
26-39-46-36 (S)
WGK Germany:
1
RID / ADR:
3260
RTECS:
UX8225000
Storage temperature:
Store at RT.

What other providers are available for CAS 7681-57-4?

In addition to the providers presented here for Sodium metabisulfite with the CAS number 7681-57-4, there are other 19 providers with slightly different product names available for this CAS number.

+1 additional providers that we know from the past
BIOZOL Diagnostica Vertrieb GmbH +2 additional providers that we know from the past
ICC Chemical Corporation | BuGuCh & Partners +6 additional providers that we know from the past
+2 additional providers that we know from the past
+2 additional providers that we know from the past
+1 additional providers that we know from the past
+2 additional providers that we know from the past




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