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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > Methylene blue for Sale > Manufacturer Direct Supply High Purity Methylene Blue Powder CAS 61-73-4
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Manufacturer Direct Supply High Purity Methylene Blue Powder CAS 61-73-4

TDS 34 Inquiries

Unit Price:

$22-24/G FOB

Get Latest Price
CAS No.:

61-73-4

Grade:

Industrial Grade

Content:

99%

Port:

QD

Brand:

NATURE

Packaging:

25kg/Cardboard Drum

Price valid (until):

2026-09-20

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

Weight Loss Peptide,Reta,Tirz,Sema,5 Amino 1mq,Cosmetic raw material,API,SLU-PP-332

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    In Stock Now | Factory Direct Price
    Fast shipment • Global delivery • Flexible MOQ • Quality guarantee
    Order directly from the manufacturer

    Enjoy professional service from inquiry to after-sales

    Methylene Blue is a synthetic thiazine dye with the molecular formula C₁₆H₁₈ClN₃S. It is a dark blue to blue-green crystalline compound that dissolves readily in water, producing a characteristic deep blue solution. Due to its redox properties and strong coloring ability, Methylene Blue has been widely used in laboratory, industrial, and pharmaceutical-related applications.

    Shop Manufacturer Direct Supply High Purity Methylene Blue Powder CAS 61-73-4-Detailed Image 1


     Specification   


    Product Name

    Methylene Blue

    CAS

    61-73-4

    Appearance

    Dark green to dark brown solid powder

    Purity

    9 9 %

    MF

    C16H18ClN3S

    MW

    319.85

    Shelf life

    2 Years


    319.85

    319.85


      Packing& Shipping& Delivery 


    Packing description: Sealed export grade drum & double of sealed plastic bag
    Storage:        Store in cool & dry place not freeze, keep away from strong light and heat
    Shelf life:       2 years when properly stored

    Packing: 

    1. Weight <1kg ---- Fluorinated bottle 

      2. 25kg ---- Plastic bucket

      3. 180- 200kg ---- Drum

     P.S.: we accept packaging customization.

    2.Delivery:  

    1. We have large quantity raw powder in stock, normally could ship out within 3 working days. 

    2. For rush delivery, please contact our sales team for particular arrangement.

    3.Shipping:

    1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker.

    2. Shipping details & shipping documents will be provided and sent to customers as long as it is ready.

    3. We keep tracking the shippment until clients well received.

    4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently.

    5. Shop High Purity Anti-aging Skin Care 5-Deazaflavin Powder CAS 26908-38-3-Detailed Image 2

      Shop High Purity Anti-aging Skin Care 5-Deazaflavin Powder CAS 26908-38-3-Detailed Image 3

    6. Shop Wholesale Methylene Blue Trihydrate High Quality Powder CAS 7220-79-3 Methylene Blue trihydrate Powder-Detailed Image 5
    7. Shop Wholesale Methylene Blue Trihydrate High Quality Powder CAS 7220-79-3 Methylene Blue trihydrate Powder-Detailed Image 6
    8. Natrue is a high-end brand company focusing on the biomedical industry and integrating R&D, production and sales. It has an independent R&D center, advanced laboratory equipment and a professional R&D team, a GMP standard production workshop, a complete set of internationally advanced assembly line equipment, a preparation workshop with a cleanliness level of 100,000, as well as sophisticated testing instruments and scientific testing methods, providing solid technical support for the production of high-quality products. Through long-term R&D, production, and sales practices, it has formed its own unique product line, providing users with products of reliable quality at highly affordable prices. We strictly control quality, ensure the stability of product quality in all aspects, and win the trust of customers with high quality and high-level development.

      Our team of experienced professionals is committed to delivering innovative solutions and exceptional customer service. We work closely with our clients to understand their unique needs and develop customized products to meet their specific requirements. With a state-of-the-art manufacturing facility and strict quality control measures, we ensure that our products meet the highest standards of safety and purity.

      We have been keeping providing new products to the markets of Europe,America,Australia,Japan and South-east Asia,etc. We always insist on our company's principle or quality & credit are first"and after several years of development,we have enjoyed good reputation in the fitness industry.

      We try our best to provide first-class goods,competitive price and supreme service to meet every client's requirements. We look forward to establish a long-term business relationship with you on the basis of equality and mutual benefits.

      Shop Customized 10MG 30MG 60MG 100MG Tirzepatide weight loss Retatrutide-Detailed Image 7

      Shop High Purity Anti-aging Skin Care 5-Deazaflavin Powder CAS 26908-38-3-Detailed Image 5
    9. Shop Wholesale Methylene Blue Trihydrate High Quality Powder CAS 7220-79-3 Methylene Blue trihydrate Powder-Detailed Image 9

    10. Q1: Can I get a sample before placing an order?
      A1: Yes, we can provide samples, you only need to pay the shipping fee and sample fee.
      Q2: How long does it take to ship an order?
      A2: We ship the package within 3-7 days with tracking number. Shipping times vary by country. 
      Q3: Why should you buy from us instead of other suppliers?
      A3: Because we are a factory, we can provide lower prices and guaranteed quality. We have extensive experience in domestic and foreign trade and provide services in an honest, timely and efficient manner.
      Q4: How to place an order for each product?
      A4: Please send us an inquiry and let us know your requirements; we will send you a complete quotation including freight, confirm the order and send payment/deposit, we will arrange production or delivery of the goods after receiving the bank receipt.

    ECHEMI Editorial Reference
    Methylene blue(Basic Blue 9) is used as a dye in chromoendoscopy, and is sprayed onto the mucosa of the gastrointestinal tract in order to identify dysplasia, or pre-cancerous lesions.

    Certificates

    Basic Info
    Product Name:

    Methylene blue

    Other Name:

    Phenothiazin-5-ium,3,7-bis(dimethylamino)-,chloride (1:1);C.I. Basic Blue 9;Phenothiazin-5-ium,3,7-bis(dimethylamino)-,chloride;C.I. 52015;Aizen Methylene Blue FZ;Aizen Methylene Blue BH;Calcozine Blue ZF;Chromosmon;Hidaco Methylene Blue Salt Free;Leather Pure Blue HB;Methylene Blue D;Methylene Blue 2BP;Methylene Blue BBA;Methylene Blue A;Methylene Blue G;Methylene Blue 2BF;Methylene Blue 2B;Methylene Blue 2BN;Methylene Blue BD;Methylene Blue N;Methylene Blue BP;Methylene Blue BPC;Methylene Blue BX;Methylene Blue BZ;Methylene Blue chloride;Methylene Blue FZ;Methylene Blue GZ;Methylene Blue JFA;Methylene Blue NF;Methylene Blue NZ;Methylene Blue SG;Methylene Blue SP;Methylene Blue ZF;Methylene Blue Zinc Free;Methylene Blue ZX;Methylenium ceruleum;Methylthionine chloride;Methylthioninium chloride;Mitsui Methylene Blue;Schultz 1038;Swiss blue;Tetramethylthionine chloride;Yamamoto Methylene Blue B;Yamamoto Methylene Blue ZF;Ext D and C Blue No. 1;Methylene Blue B;Methylene blue;Basic Blue 9;Methylene Blue BB;Methylene Blue Iad;Methylene Blue HGG;Methylene blue polychrome;Sandocryl Blue BRL;External Blue 1;Tetramethylthionine;Duasyn Basic Blue IAD;Methylene Blue MB;Basic Lake Blue;Urolene Blue;Solvent Blue 8;C.I. Solvent Blue 8;Izit Crystal Dye;NSC 617593;Maxilon Blue SG;BIVN 401;Virostat;Suvus;Proveblue;Basic Blue 2B;TRx 0237;Methylene Blue solution alkaline according to Loeffler;97130-83-1;105504-42-5;121067-62-7;1341-90-8;6476-03-5;12262-49-6;167498-52-4;923927-02-0;1001913-24-1;1001914-35-7;1219638-11-5

    CAS No.:

    61-73-4

    Molecular Formula:

    C16H18N3S.Cl

    InChIKeys:

    InChIKey=CXKWCBBOMKCUKX-UHFFFAOYSA-M

    Molecular Weight:

    319.85

    Exact Mass:

    319.09100

    EC Number:

    200-515-2

    HScode:

    32049010

    Characteristics
    PSA:

    43.9

    XLogP3:

    log Kow = 0.75 (est)

    Appearance:

    Green Liquid

    Density:

    1.31 g/cm3

    Melting Point:

    100-110 °C (decomp)

    Flash Point:

    45 °C

    Water Solubility:

    H2O: 40 g/L (20 ºC);soluble in water, ethanol, ethylene glycol, methyl cellosolve

    Storage Conditions:

    Store at RT

    Vapor Pressure:

    1.30X10-7 mm Hg at 25 deg C (est)

    Toxicity:

    Oral-rat LD50; 1180mg/kg; Oral-Mouse LD50: 3500 mg/kg

    Flammability characteristics:

    Combustion produces toxic nitrogen oxides, chloride and sulfur oxide fumes; drug side effects: rickets, blood lesions

    Odor:

    Slight odor

    Hazard Identification

    Classification of the substance or mixture

    Acute toxicity - Category 4, Oral

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Warning

    Hazard statement(s)

    H302 Harmful if swallowed

    Precautionary statement(s)
    Prevention

    P264 Wash ... thoroughly after handling.

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

    Response

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    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

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Weight Loss Peptide,Reta,Tirz,Sema,5 Amino 1mq,Cosmetic raw material,API,SLU-PP-332

    Location:

    Unit D01,3/F., Wong King Industrial Building,No.2 Tai Yau Street, Kowloon

    Payment Terms:

    TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    7

    Total Annual Revenue:

    $50 million-$100 million

    Total Employees:

    51-100

    Year of Establishment:

    2012

    We have more than 10 years experience in the pharmacy filed. Mainly manufactures pharmaceutical APIs,Pharmaceutical intermediate and Cosmetic raw material. Owing to the good quality and competitive price, we have a very good reputation in China's pharmaceutical circles.

    In the principle of "Quality Oriented", Jianfeng passed the certification of ISO9001:2008 Quality Management System.

    Our products are based on bulk, high volume, wholesale price, third party testing, certificate reporting, and bring high quality ingredients to many domestic and overseas enterprises.

    "Honesty, practicality, innovation, development" are our values. Jianfeng would like to cooperate with you with high quality products and competitive price.

  • Inquiry History
    34 Inquiries
    Country Product Purchase Quantity Date Posted
    Germany

    METHYLENBLAU (ZINKFREI) 61-73-4 JC

    1 KG Oct 7, 2023
    United States

    Factory Supply Methylene Blue Raw Materials 99% Powder CAS 61-73-4 EGC-Methylene Blue

    1 KG Sep 24, 2023
    Turkey

    Methylene Blue

    7 KG May 14, 2025
    India

    Methylene Blue

    1.00 MT Nov 9, 2023
    United States

    Methylene Blue powder

    1 KG Aug 10, 2026
    India

    Methylene Blue

    1.00 MT Oct 12, 2023
    Netherlands

    Methylene Blue

    1 KG Aug 23, 2026
    United States

    Methylene Blue

    1 KG Apr 16, 2026
    India

    Methylene blue

    1.00 L Dec 31, 2025
    United States

    Methylene Blue

    1 KG Dec 14, 2025
    Indonesia

    Methylene Blue

    1 KG May 6, 2025
    United States

    Basic Blue 9

    1 KG Apr 24, 2025
    Australia

    Methylene Blue

    2 KG Feb 3, 2025
    United States

    Methylene Blue

    3 KG May 9, 2024
    India

    Methylene Blue

    1.00 MT Apr 3, 2024
    United States

    Methylene Blue Powder

    1 KG Feb 15, 2024
    India

    Methylene blue

    1.00 KG Jan 17, 2024
    Canada

    Methylene Blue Human Grade

    2 PCS Jan 12, 2026
    United Kingdom

    Methylene Blue

    100 PCS Oct 28, 2025
    Germany

    Methylene Blue USP Grade

    5 KG Jul 7, 2025
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