Methylene Blue trihydrate
(35018936 | 7220-79-3)

CAS: 7220-79-3
Molecular Formula: C16H18CIN3S·3H2O
Molecular Weight: 373.90
Availablility: In Stock
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Methylene Blue trihydrate Chemical Structure

35018936-100g 100g £58.90
35018936-1kg 1kg £468.00
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35018936-100g 100g €82.50
35018936-1kg 1kg €655.20
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35018936-100g 100g $88.40
35018936-1kg 1kg $702.00
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Safety Data Sheet
Certificate of Analysis

Product Detail
Product Code 35018936
Product Name Methylene Blue trihydrate
Categories Stains & Indicators
CAS 7220-79-3
Molecular Formula C16H18CIN3S·3H2O
Molecular Weight 373.90
Storage Details Ambient
Harmonised Tariff Code 32129000

Product Specification
Identification To conform to standard
Loss on Drying <22%
Solubility Clear blue solution
Copper ≤200ppm
Residue on Ignition <1.2%
Appearance Dark green crystalline powder
Assay (dry basis) 98 - 103%
Assay (as is basis) >82%

Safety Information
Exclamation Mark
Danger to Health
Signal word warning
Hazard statements
  • H302: Harmful if swallowed

  • H315: Causes skin irritation

  • H319: Causes serious eye irritation

  • H335: May cause respiratory irritation

  • H373: May cause damage to organs through prolonged or repeated exposure
Precautionary statements
  • P261: Avoid breathing dust/fume/gas/mist/vapours/

  • P280: Wear: protective gloves/ clothing & eye protection

  • P301+310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician

  • P303+361: IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower

  • P305+351+338: IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

  • P308+313: IF exposed or concerned: Get medical advice/attention