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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > Sodium pyrosulfite for Sale > High-purity raw material Sodium metabisulfite CAS 7681-57-4 at competitive pricing
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High-purity raw material Sodium metabisulfite CAS 7681-57-4 at competitive pricing

107 Inquiries

Unit Price: Get Latest Price
CAS No.:

7681-57-4

Grade:

Pharmaceutical Grade

Content:

99%

Port:

shenzhen

Packaging:

1kg/bag;25kg/Cardboard Drum

Price valid (until):

2026-04-09

Company Type:
Trader
Location:
China
Qualification:
Main Products:

Estradiol,Progesterone,GS441524,4-Butylresorcinol,DeoxyArbutin,Coenzyme Q10

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Superiority

    We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address

    1.High quality and competitive price.
    2.Free sample for your evaluation.
    3.Promptly delivery by well-reputed shipping lines.
    4.Trial order is available for testing after samples.
    5.We will inform you all the information at every stage in advance.
    6.Packaging can gear to buyers' special request. 

    Our service

    1. Reply your inquiry in 24 working hours.
    2. Customized design is available. OEM are welcomed.
    3. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and
    staff.
    4. Professional factory: We are manufacturer, specializing in producing all kinds of herb extract for more than 10 years, competitive with good quantity.
    5. As an honest seller, we always use superior raw material, advanced machines, skilled technicians to ensure our products to be finished in high quality and stable feature.




    Shop High-purity raw material Vortioxetine CAS 508233-74-7 at competitive pricing-Detailed Image 1 Shop High-purity raw material Vortioxetine CAS 508233-74-7 at competitive pricing-Detailed Image 2









    FAQ


    1.: Are you a factory or trading company
    We are the integration of factory and trade.


    2.: How is the quality I want to test.
    Before production and extraction, we will test all raw materials.Quality is our top priority.All products are strictly tested and confirmed by our QC and QA, approved by Third Party Lab in China.So you will be assured with Good Quality if you choose us. We welcome you test the product and hope to get your feedback.


    3.: Can I get a Free sample
    Yes,We can provide free samples.For most products we can provide you a free sample, You only need to pay for Shipping. Plesae be free to consult our salesman.
    For a larger quantity, we always support you with better price, and we will have some discount in some especial days.


    4. : What's your main payment method
    T/T (Bank transfer), Wechat,Alipay,Credit card payment.


    5. : Have you received my payment How long will it take
    Generally, we can receive your payment the next day, and we will inform you as soon as we receive your payment.
    After confirmation payment, we will send out package


    6.:When will you sent out the goods after successful payment
    Normally the order will be delivery within 1-3 days after the order confirmed, except the customized products.


    7.:What modes of transportation do you have to choose
    We cooperate with HKEMS, DHL, TNT, UPS, FEDEX, EMS, China Air Post ,sea transportation etc.
    And with the SAFE SHIPPING in each country, you can receive the goods smoothly.It is fast and safe method.


    8.:How long does it take to the goods arrived
    It is Depending on your location:
    For small order, please expect 5-7 days by DHL,UPS,TNT, FEDEX, HKEMS,Netherlands post.
    For large order, please allow 5-8 days by Air, 20-35 days by Sea
    At the same time, we have warehouses in Germany and California, and some orders can be sent directly from Germany or California.


    9.:How is the goods packed
    We usually send goods with disguise package outside and a double-layer sterile transparent bag inside.We have tried thousand of package methods, it looks serious and discreet.


    10.: How can I get a discount
    Our products have already given you a discount, and the price is favorable. Orders above $1,000 can enjoy 95% discount, transportation discount or additional sample products. Therefore, for larger quantities, we always support better prices.


    11.: How to proceed order
    Please Let me konw the product you are looking for,quantity and the destination country wihch help me to give you a right price;
    After you confirm all details of order, pay money in advance and give us Shipping address.We arrange the shipment at first time after receive payment and offer after-sales service after you receive parcel.


    12.:When will I receive the shipping number Where I can check status of my order
    After the goods are sent out, our staff will send you the shipping number via email, online or WhatsApp ASAP.You can also check the status online on 17track.


    13.:Is a signature required for the shipping?
    Our shipping method requires no signature from your side upon delivery.

    Basic Info
    Product Name:

    Sodium pyrosulfite

    Other Name:

    Disulfurous acid,sodium salt (1:2);Pyrosulfurous acid,disodium salt;Disulfurous acid,disodium salt;Sodium pyrosulfite (Na2S2O5);Sodium pyrosulfite;Sodium metabisulfite;Sodium metabisulfite (Na2S2O5);Disodium pyrosulfite;Fertisilo;Disodium disulfite;Sodium disulfite (Na2S2O5);Disodium metabisulfite;Disodium pyrosulfite (Na2S2O5);Campden Tablets;Colorstrip Catalyst 100;E 223;Sobis;Sobisu;Sodium sulfur oxide (Na2S2O5);NSC 158277;NSC 227243;15771-29-6;1287784-10-4;2242622-57-5

    CAS No.:

    7681-57-4

    Molecular Formula:

    H2O5S2.2Na

    InChIKeys:

    InChIKey=ZBVPOSMABOMSMZ-UHFFFAOYSA-N

    Molecular Weight:

    190.095

    Exact Mass:

    189.898254

    EC Number:

    231-673-0

    UNII:

    4VON5FNS3C

    ICSC Number:

    1461

    UN Number:

    1759

    DSSTox ID:

    DTXSID0029684

    Color/Form:

    White hexagonal crystals or powder|White to yellowish crystals or powder.|Colorless crystals|White granular or powdered salt

    HScode:

    2832100000

    Characteristics
    PSA:

    125

    XLogP3:

    -3.7

    Appearance:

    White to slightly yellow Powder/Solid

    Density:

    1.4 g/cm3

    Melting Point:

    150 °C (decomp)

    Boiling Point:

    Decomposes

    Water Solubility:

    H2O: 540 g/L (20 ºC)

    Storage Conditions:

    Storage containers are predominantly made from 1.4571 grade stainless steel. Fiberglass-reinforced plastic containers are also suitable for storage. Paper or plastic sacks, steel barrels, or big bags made of synthetic fibers are used for transportation.

    Toxicity:

    LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg

    Flammability characteristics:

    Noncombustible Solid

    Odor:

    In the presences of traces of water, it develops an odor of sulfur dioxide

    PH:

    4,0-5,5 (10 % aqueous solution)

    Experimental Properties:

    ... in moist air it decomposes with loss of part of its SO2 content and by oxidation to sodium sulfate ... Dry sodium metabilsulfite is more stable to oxidation than dry sodium sulfite|Slowly oxidized to the sulfate on exposure to air and moisture

    Air and Water Reactions:

    Acts as a corrosive acid when mixed with water. Reacts slowly with air and water.

    Reactive Group:

    Sulfite and Thiosulfate Salts

    Reactivity Alerts:

    Strong Reducing Agent

    Reactivity Profile:

    SODIUM METABISULFITE is incompatible with the following: Heat (decomposes) [Note: Slowly oxidized to the sulfate on exposure to air & moisture.] (NIOSH, 2016).

    Flammable Limits:

    Noncombustible Solid

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    Serious eye damage, Category 1

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H302 Harmful if swallowed

    H318 Causes serious eye damage

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

    P317 Get medical help.

    Storage

    none

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Separated from acids and strong oxidants.The bulk material should be stored in a well closed container, protected from light, in a cool, dry place.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Estradiol,Progesterone,GS441524,4-Butylresorcinol,DeoxyArbutin,Coenzyme Q10

    Location:

    XINYUAN DADUHUI PHASE 1, NO.258 TAOYUAN NORTH ROAD, LIANHU DISTRICT, XI 'AN , SHAANXI CHINA

    Payment Terms:

    TT against copy of documents,100% TT in advance

    Average lead Time:

    30

    Total Annual Revenue:

    $2.5 million-$5 million

    Total Employees:

    11-50

    Year of Establishment:

    2023




      Company Profile  


  • Inquiry History
    107 Inquiries
    Country Product Purchase Quantity Date Posted
    India

    sodium metabisulfite 7681-57-4

    200 MT Oct 3, 2024
    India

    Sodium Metabisulphite

    20000.00 TON May 28, 2025
    Georgia

    Sodium Metabisulfite

    5000 KG Dec 8, 2025
    Pakistan

    Sodium Metabisulfite

    1.00 20' Fcl Jul 7, 2026
    Pakistan

    Sodium metabisulfite

    3.00 KG Jun 5, 2026
    Pakistan

    Sodium Metabisulfite

    1.00 KG Jun 3, 2026
    Russia

    sodium metabisulfite

    1 KG May 29, 2026
    Russia

    sodium metabisilfite

    200 MT May 28, 2026
    Sri Lanka

    Sodium Metabisulfite

    27 MT Apr 7, 2026
    Oman

    Sodium metabisulfite

    20 MT Mar 25, 2026
    Egypt

    Sodium Metabisulfite

    3000.00 KG Mar 19, 2026
    India

    Sodium Metabisulphite

    1000 KG Mar 18, 2026
    Indonesia

    Sodium Metabisulphite

    13200 L Feb 6, 2026
    Bahrain

    Sodium Metabisulfate

    1.00 KG Feb 4, 2026
    India

    Sodium Metabisulphite

    2.00 MT Jan 21, 2026
    United States

    Sodium Metabisulphite 97%

    28 MT Jan 4, 2026
    Pakistan

    Sodium metabisulfite

    3.00 20' Fcl Dec 23, 2025
    South Africa

    Sodium Metabisulphite

    1 MT Nov 14, 2025
    Pakistan

    Sodium Metabisulfite 97%

    1.00 KG Nov 4, 2025
    Pakistan

    Sodium Metabisulfite

    3.00 20' Fcl Oct 13, 2025
    Post an enquiry for this product
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