structure of 92-31-9

Toluidine Blue O(CAS 92-31-9)

CAS No.: 92-31-9 Brand: MolBest
M. Ft.: C15H16ClN3S Cat. No: G5529179
M. Wt.: 305.83 MDL: MFCD00011934
Storage: No record Use: For laboratory research use only
HS CODE: 2934300000
Purity Grade Package Stock Price Quantity
Dye content, 73%
Documents:COANMRSDS
RG 25G In Stock 50 USD
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Applications of 92-31-9

Industry Application Process
Textile Industry Dyeing and printing of cotton, linen, silk, wool, and blended fibers Direct dyeing, mordant dyeing, preparation of printing pastes
Paper Industry Coloration and tone adjustment of paper Added to pulp prior to sizing or during papermaking
Ink Manufacturing Blue colorant for aqueous inks and banknote inks Mixed with binders (e.g., acrylic resins, polyvinyl alcohol) and ground to achieve dispersion
Cosmetics Colorant in temporary hair dyes, tattoo gels, and color cosmetics (restricted to non-ocular, non-mucosal applications) Incorporated into emulsion systems at concentrations compliant with the Limits specified in the Technical Specifications for Cosmetic Safety (≤0.5%)
Biological Staining Counterstain in tissue section staining and Gram staining of bacteria Applied as a dilute alkaline solution of Brilliant Blue 17 following primary staining with crystal violet and mordanting with iodine solution

Physical and chemical properties of 92-31-9

Acidity coefficient

2.4, 11.6(at 25℃)

Color Index

52040

Exact Mass

305.075348

LogP

1.27240

Melting Point

>200℃

Merck

14,9520

Molecular Formula

C15H16ClN3S

Molecular Weight

305.826

pH

2.8 (H2O, 25℃)

PSA

70.39000

Solubility

H2O: soluble1mg/mL

Stability

Stable. Incompatible with strong oxidizing agents.

Storage condition

Inert atmosphere,Room Temperature

Water Solubility

3.82 g/100 mL

λmax

626 nm, 630 nm

Spectrums of 92-31-9

Attention:
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Physical sample testing spectrum (NMR) of 92-31-9

Retrosynthesis analysis of 92-31-9


Q&A for CAS 92-31-9

1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.

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Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.

3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.

4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.

5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.

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7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.

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Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.

9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.

10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.

11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.

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Download SDS of 92-31-9

Pictograms

Signal Word

 Warning

Hazard Statements

 H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Safety Data Sheet
SDS of
92-31-9.pdf

Download COA of 92-31-9

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Operate under the ISO 9001 system