Methylene Blue Trihydrate Basic Blue 9 CAS 61-73-4 CAS 7220-79-3

• Customization: Available
• CAS No.: 61-73-4; 7220-79-3
• Formula: C16h18cln3s;C16h18cln3s.3H2O
• Model NO.: 99%
• Appearance: Green Crystal
• Grade Standard: Industrial Grade
• Transport Package: 25 Kg Per Drum
• Specification: ≥ 99%
• Trademark: JinYu
• Origin: China

Product Description

Product Description

Basic Information

• Product Name: Methylene Blue
• Other Aliases: Methylthioninium Chloride, Swiss Blue, Basic Blue 9
• CAS Number: 61-73-4; 7220-79-3
• Molecular Formula: C16H18ClN3S; C16H18ClN3S.3H2O (trihydrate)
• Molecular Weight: 319.85200 ; 373.90 g/mol (trihydrate)

Physical Properties

• Appearance:
  • Anhydrous form: Dark green crystalline powder with metallic luster.
  • Trihydrate form: Bright blue crystalline powder.
• Solubility:
  • Highly soluble in water (aqueous solution is blue), soluble in ethanol, slightly soluble in acetone.
• Melting Point: 190°C (decomposes).
• Hygroscopicity: The trihydrate easily loses water of crystallization in dry air.

Chemical Properties

• Acid-Base Character: Exhibits basicity and forms salts with acids.
• Redox Properties:
  • Exists in an oxidized form (blue) and a reduced form (colorless leucomethylene blue), making it a common redox indicator.
  • The reduced form can be re-oxidized to blue by oxidants like oxygen or iron ions.
• Coordination Ability: Nitrogen and sulfur atoms in the molecule act as ligands to form complexes with metal ions.

Applications
Medical Field

• Antidote:
  • Treats cyanide poisoning (used with sodium thiosulfate), promoting conversion of cyanide to non-toxic thiocyanate.
  • Alleviates methemoglobinemia (e.g., from nitrite poisoning) by reducing methemoglobin to normal hemoglobin.
• Topical Antiseptic: Dilute solutions disinfect wounds and the urinary tract.
• Diagnostic Aid: Stains the urinary tract during cystoscopy or serves as a vital stain in bacteriology.

Biology & Laboratory Use

• Staining Agent:
  • Stains bacteria and cells (e.g., mitochondria in plant and animal cells), differentiating live cells (resistant to staining) from dead ones.
  • Acts as an indicator for starch detection (forms a blue complex with iodine).
• Redox Indicator: Indicates the endpoint of redox titrations.

Industrial & Other Fields

• Textile Dyeing: Dyes cotton, linen, silk, etc., with vivid blue color.
• Aquaculture: Controls parasitic diseases (e.g., ichthyophthiriasis) in fish or disinfects water bodies.
• Chemical Synthesis: Serves as an intermediate for drug or organic compound synthesis.

Safety Considerations
Health Hazards

• Exposure Risks:
  • Skin contact: May cause irritation or allergic reactions (redness, itching).
  • Eye contact: Irritates eyes, leading to redness and pain.
• Inhalation: Dust irritates the respiratory tract, causing cough and dyspnea.
• Ingestion: May lead to nausea, vomiting, abdominal pain; large doses can affect the central nervous system.

Environmental & Storage

• Environmental Impact: Highly concentrated solutions are toxic to aquatic life; avoid improper discharge.
• Storage Conditions:
  • Store sealed in a cool, dry place, away from oxidants and strong acids.
  • Keep away from light to prevent decomposition.

First Aid

• Skin/eye contact: Flush with plenty of water; seek medical help if irritation persists.
• Inhalation: Move to fresh air; provide oxygen if breathing is difficult.
• Ingestion: Rinse mouth, induce vomiting with warm water, and seek medical attention.

Additional Notes

• Medical dosage must be strictly controlled; overdose may cause methemoglobinemia (opposite to its therapeutic purpose) or other adverse effects.
• In laboratories, staining efficiency is affected by pH and temperature, requiring condition adjustment for specific needs.

Product Parameters

 

Packaging & Shipping

Liquid products	Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons .
Solid products	Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg.

Packaging can be customized according to customer requirements.

Company Profile

Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.

Our Advantages