{"product_id":"methylene-blue-solution-4","title":"Methylene Blue Solution 4%","description":"\u003cdiv style=\"background: linear-gradient(180deg,#07111f 0%, #0b1a2d 100%); border: 1px solid rgba(110,180,255,0.20); border-radius: 22px; padding: 28px; color: #eaf4ff; box-shadow: 0 12px 40px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.06); font-family: Arial,sans-serif; overflow: hidden;\"\u003e\n\u003c!-- HEADER --\u003e\n\u003cdiv style=\"margin-bottom: 22px; padding-bottom: 18px; border-bottom: 1px solid rgba(110,180,255,0.16);\"\u003e\n\u003cdiv style=\"display: inline-block; padding: 6px 12px; border-radius: 999px; background: rgba(79,172,255,0.12); border: 1px solid rgba(110,180,255,0.22); color: #9fd2ff; font-size: 12px; font-weight: bold; letter-spacing: 1px; text-transform: uppercase;\"\u003eAdvanced Research Science\u003c\/div\u003e\n\u003ch2 style=\"margin: 14px 0 8px; font-size: 30px; line-height: 1.15; color: #ffffff; font-weight: 800;\"\u003eMethylene Blue 4% Solution — 30 mL\u003c\/h2\u003e\n\u003cp style=\"margin: 0; font-size: 15px; line-height: 1.8; color: #c9ddf3;\"\u003eMethylene blue high strength 4% research solution prepared using USP-grade raw material. Supplied in a 30 mL blue glass bottle with a glass pipette and child-resistant dropper cap for laboratory handling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- HIGHLIGHT CARDS --\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(180px,1fr)); gap: 12px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.04); border: 1px solid rgba(110,180,255,0.14); border-radius: 16px; padding: 14px;\"\u003e\n\u003cdiv style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #8fc8ff; margin-bottom: 6px;\"\u003eFormat\u003c\/div\u003e\n\u003cdiv style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #8fc8ff; margin-bottom: 6px;\"\u003e\u003cspan style=\"color: #ffffff; font-size: 15px; font-weight: bold;\"\u003e solution\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.04); border: 1px solid rgba(110,180,255,0.14); border-radius: 16px; padding: 14px;\"\u003e\n\u003cdiv style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #8fc8ff; margin-bottom: 6px;\"\u003eConcentration\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #ffffff;\"\u003e4% w\/v · 40 mg\/mL\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.04); border: 1px solid rgba(110,180,255,0.14); border-radius: 16px; padding: 14px;\"\u003e\n\u003cdiv style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #8fc8ff; margin-bottom: 6px;\"\u003eBottle Volume\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #ffffff;\"\u003e30 mL\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.04); border: 1px solid rgba(110,180,255,0.14); border-radius: 16px; padding: 14px;\"\u003e\n\u003cdiv style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #8fc8ff; margin-bottom: 6px;\"\u003eRaw Material\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #ffffff;\"\u003eUSP grade\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- PRODUCT OVERVIEW --\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.035); border: 1px solid rgba(110,180,255,0.12); border-radius: 18px; padding: 20px; margin-bottom: 18px;\"\u003e\n\u003ch3 style=\"margin: 0 0 10px; font-size: 18px; color: #ffffff;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 15px; line-height: 1.85; color: #d6e7f7;\"\u003eMethylene blue is a synthetic dye used in laboratory staining and oxidation-reduction studies. Its distinctive blue colour makes it useful for visual observation in appropriate experimental systems.\u003c\/p\u003e\n\u003cp style=\"margin: 12px 0 0; font-size: 15px; line-height: 1.85; color: #d6e7f7;\"\u003eThis product is supplied as a 4% weight-per-volume solution for laboratory research and analytical investigation. Suitability for a particular method, including any required working concentration, must be established by the laboratory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- COMMON RESEARCH AREAS --\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.035); border: 1px solid rgba(110,180,255,0.12); border-radius: 18px; padding: 20px; margin-bottom: 18px;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px; font-size: 18px; color: #ffffff;\"\u003eCommon Research Areas\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px; color: #d6e7f7; line-height: 1.9; font-size: 15px;\"\u003e\n\u003cli\u003eBiological staining and microscopy\u003c\/li\u003e\n\u003cli\u003eOxidation-reduction indicator studies\u003c\/li\u003e\n\u003cli\u003eDye behaviour and colour-change experiments\u003c\/li\u003e\n\u003cli\u003eAnalytical method development\u003c\/li\u003e\n\u003cli\u003eLaboratory identification and visualisation studies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- CONCENTRATION REFERENCE --\u003e\n\u003cdiv style=\"background: linear-gradient(180deg,rgba(18,43,70,0.90) 0%, rgba(10,25,43,0.95) 100%); border: 1px solid rgba(110,180,255,0.20); border-radius: 18px; padding: 20px; margin-bottom: 18px; box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);\"\u003e\n\u003ch3 style=\"margin: 0 0 12px; font-size: 18px; color: #ffffff;\"\u003eConcentration \u0026amp; Dropper Reference\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px; color: #d6e7f7; line-height: 1.9; font-size: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eNominal concentration:\u003c\/strong\u003e 4% weight per volume (w\/v)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003ePer millilitre:\u003c\/strong\u003e 40 mg of raw material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003ePer 0.5 mL:\u003c\/strong\u003e Approximately 20 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003ePer 30 mL bottle:\u003c\/strong\u003e 1,200 mg of raw material\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eObserved drop count:\u003c\/strong\u003e Approximately 15 drops per 0.5 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eApproximate amount per drop is :\u003c\/strong\u003e 1.33 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDrops per 30 mL bottle \u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e Approximately 900\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 14px 0 0; font-size: 14px; line-height: 1.8; color: #c9ddf3;\"\u003eThe supplied dropper was assessed across repeated tests. A bulb draw of approximately 0.5 mL produced an average of approximately 15 drops, equivalent to around 30 drops per mL.\u003c\/p\u003e\n\u003cp style=\"margin: 12px 0 0; font-size: 14px; line-height: 1.8; color: #c9ddf3;\"\u003eDrop size can vary with liquid level, pipette angle, dispensing pressure and technique. These figures are approximate laboratory references only. The supplied dropper is not calibrated volumetric equipment and should not be used where precise measurement is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SCIENTIFIC VALUES --\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.035); border: 1px solid rgba(110,180,255,0.12); border-radius: 18px; padding: 20px; margin-bottom: 18px;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px; font-size: 18px; color: #ffffff;\"\u003eScientific Values\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px; color: #d6e7f7; line-height: 1.9; font-size: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eCompound:\u003c\/strong\u003e Methylene blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eRaw-material form:\u003c\/strong\u003e Methylene blue trihydrate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eColour Index:\u003c\/strong\u003e C.I. 52015\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eRaw-material CAS number:\u003c\/strong\u003e 7220-79-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eRaw-material molecular formula:\u003c\/strong\u003e C\u003csub\u003e16\u003c\/sub\u003eH\u003csub\u003e18\u003c\/sub\u003eClN\u003csub\u003e3\u003c\/sub\u003eS · 3H\u003csub\u003e2\u003c\/sub\u003eO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eRaw-material molecular weight:\u003c\/strong\u003e Approximately 373.90 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eSolvent:\u003c\/strong\u003e Distilled water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- PRODUCT SPECIFICATIONS --\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.035); border: 1px solid rgba(110,180,255,0.12); border-radius: 18px; padding: 20px; margin-bottom: 18px;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px; font-size: 18px; color: #ffffff;\"\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul style=\"margin: 0; padding-left: 18px; color: #d6e7f7; line-height: 1.9; font-size: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eProduct:\u003c\/strong\u003e Methylene Blue 4% w\/v Solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eAppearance:\u003c\/strong\u003e Deep blue liquid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eNet volume:\u003c\/strong\u003e 30 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003ePackaging:\u003c\/strong\u003e Blue glass bottle with glass pipette and child-resistant dropper cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eIngredients:\u003c\/strong\u003e Methylene blue trihydrate and distilled water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eRaw-material grade:\u003c\/strong\u003e Supplier-specified USP39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eRaw-material assay:\u003c\/strong\u003e Refer to the relevant supplier batch COA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #ffffff;\"\u003eIntended setting:\u003c\/strong\u003e Laboratory research and analytical use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- STORAGE AND HANDLING --\u003e\n\u003cdiv style=\"background: rgba(255,255,255,0.035); border: 1px solid rgba(110,180,255,0.12); border-radius: 18px; padding: 20px; margin-bottom: 18px;\"\u003e\n\u003ch3 style=\"margin: 0 0 12px; font-size: 18px; color: #ffffff;\"\u003eStorage \u0026amp; Handling\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 15px; line-height: 1.85; color: #d6e7f7;\"\u003eKeep tightly closed in a cool, dry place away from direct sunlight. Follow the storage conditions and any expiry or retest date stated on the supplied batch label.\u003c\/p\u003e\n\u003cp style=\"margin: 12px 0 0; font-size: 15px; line-height: 1.85; color: #d6e7f7;\"\u003eAvoid contaminating the solution or pipette. Methylene blue is a strong dye and can stain skin, clothing and work surfaces. Consult the applicable Safety Data Sheet before handling and use suitable laboratory protective equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- IMPORTANT INFORMATION --\u003e\n\u003cdiv style=\"background: linear-gradient(180deg,rgba(21,34,53,0.85) 0%, rgba(11,21,35,0.95) 100%); border: 1px solid rgba(120,180,255,0.16); border-radius: 18px; padding: 20px;\"\u003e\n\u003ch3 style=\"margin: 0 0 10px; font-size: 17px; color: #ffffff;\"\u003eImportant Information\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 10px; color: #dbe9f7; font-size: 14px; line-height: 1.8;\"\u003eThis product is supplied strictly for laboratory research and analytical purposes only.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #ffffff; font-size: 14px; line-height: 1.8; font-weight: bold; text-transform: uppercase;\"\u003eNot for human or veterinary use. Not for consumption or injection. For research use only.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #dbe9f7; font-size: 14px; line-height: 1.8;\"\u003eWe do not provide dosage, administration or personal-use guidance. This product is not supplied as a food, dietary supplement or medicine.\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #a9c4de; font-size: 13px; line-height: 1.8;\"\u003eProduct images are illustrative. Refer to the supplied bottle label and relevant batch documentation for product-specific information.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Evolve Biolab UK","offers":[{"title":"Default Title","offer_id":59479298048345,"sku":null,"price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1029\/3569\/1609\/files\/IMG-1907.png?v=1789741714","url":"https:\/\/evolvebiolabuk.com\/products\/methylene-blue-solution-4","provider":"Evolve Biolab UK","version":"1.0","type":"link"}