CAS: 6358-69-6
Molecular Formula: C16H7Na3O10S3
Molecular Weight: 524.39
EINECS: 228-783-6
Synonyms: 1,3,6-Pyrenetrisulfonicacid,8-hydroxy-,trisodiumsalt; 3,6-pyrenetrisulfonicacid,8-hydroxy-trisodiumsalt; 8-hydroxypyrene-1,3,6-trisulfonicacidsodiumsalt; c.i.solventgreen7
Solvent Green 7 (CAS 6358-69-6), is a strong fluorescent, water-soluble yellow-green dye / fluorescent indicator. Its core applications include fluorescence tracing, cosmetic coloring, and biological detection.
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Product name
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Solvent Green 7
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Cas
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6358-69-6
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EINECS No.
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228-783-6
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Molecular Formula
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C16H7Na3O10S3
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Molecular Weight
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524.38
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Density
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2.15
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Intensity
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120±3%
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Salt Content
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≤14.5
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Moisture
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≤0.5%
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Color tone
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Close to the Standard
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1. Fluorescence Tracing (Core)
Industrial: Boiler water, cooling water, pipeline leakage tracer; mechanical flaw detection revealing agent
Environmental: Water flow, groundwater monitoring
Cosmetics and Consumer Goods: Antifreeze, cutting fluid, water tank protector, hand sanitizer, shampoo coloring + fluorescence marking
2. Cosmetics and Consumer Goods
Cosmetics, soap, body wash, yellow-green coloring (D&C Green No. 8, compliant grade)
Fluorescent pens, fluorescent ink, marker pens, watercolor pens dyes
3. Research and Biology
Biological / Chemical pH Fluorescent Indicators (HPTS), used for intracellular pH, membrane permeability detection
Fluorescent chemical sensors (such as for detecting Cu²⁺)
4. Industrial Coloring
Inks, paints, plastics (PS, PVC), yellow-green fluorescent coloring of paper
1. Excellent water solubility, directly dissolves in water-based systems without precipitation; a very low addition amount can produce a strong green fluorescence, with high traceability sensitivity;
2. pH-responsive fluorescence property, suitable for scientific pH probes, flow inspection, distinct from ordinary non-fluorescent dyes;
3. Resistant to basic water-based systems, suitable for coolant, cutting fluid, anti-counterfeiting ink formulations;
4. Complete purity gradient options, industrial grade / research grade available, batch fluorescence intensity stable;
5. General trade export, customs declaration simple, complete set of export documents available.
200kgs/drum, 16tons/20’container
Q: How does pH affect fluorescence?
A: pH-sensitive fluorescent probes show stronger fluorescence in alkaline environments and weaker fluorescence in acidic conditions. It is recommended to use a pH range of 7-10; a highly acidic system will reduce the fluorescence effect. Excitation wavelength Ex ≈ 450 nm, emission wavelength Em ≈ 510 nm, green fluorescence.
Q: What is the recommended addition amount?
A: Industrial coolant / antifreeze tracer: 5–50 ppm, a very low addition amount can detect fluorescence;
Fluorescent anti-counterfeiting ink: formulation 0.1–0.5%;
Q: Storage stability, will light cause degradation?
A: Sensitive to strong ultraviolet light. Long-term exposure to strong sunlight will lead to photodegradation and a decrease in fluorescence intensity; sealed and protected from light at room temperature is stable.
✅ Expiration date: Original packaging sealed for 24 months; for long-term storage, it is recommended to avoid light, and refrigeration at 2–8℃ is better (for research grade).
Q: Storage conditions?
A: Sealed, cool and dry, protected from light; away from strong sunlight and strong oxidants; Packaging: 25kg inner PE bag cardboard barrel.
Q: Sample policy?
A: Sample fee, for large orders, the sample fee can be refunded.
Sample delivery time: Inventory 1–3 working days for stock preparation, international delivery 3–7 days (depending on the destination country).
Q: Delivery time for large orders
A: Standard ≥ 98% industrial grade ready stock: 7–12 working days after receiving the deposit
≥ 99% research high-purity specification: 12–20 working days
Packaging: 25kg inner PE cardboard barrel.
