structure of 135-53-5

Sodium 6,7-Dihydroxynaphthalene-2-Sulfonate(CAS 135-53-5)

CAS No.: 135-53-5 Brand: MolBest
M. Ft.: C10H7NaO5S Cat. No: G3508903
M. Wt.: 262.21 MDL: MFCD00004074
Storage: Store in a cool,dry area. Use: For laboratory research use only
HS CODE: 2908999090
Purity Grade Package Stock Price Quantity
98%
Documents:COANMRHPLCSDS
RG 25G In Stock 7 USD
98%
Documents:COANMRHPLCSDS
RG 100G In Stock 15 USD
98%
Documents:COANMRHPLCSDS
RG 500G In Stock 51 USD
98%
Documents:COANMRHPLCSDS
RG 2.5KG In Stock 250 USD
98%
Documents:COANMRHPLCSDS
RG 10KG In Stock 994 USD
Your region is eligible for ordering.
Should you have any questions, please contact us by Email.
Batch COA
Available
NMR Spectrum
Verified
In Stock
Fast Shipping
ISO 9001
Quality System

Quick Links

Applications of 135-53-5

Industry Application Process
Dye Industry Intermediate for azo dyes, used in the synthesis of acid, direct, and reactive dyes Coupling with aromatic diazonium salts to form colored azo compounds
Textile Dyeing and Printing Used as a dye component for dyeing protein fibers such as wool and silk Dyeing conducted in a weakly acidic medium; sulfonic acid groups enhance water solubility and fiber affinity
Organic Synthesis Precursor for naphthalene-based functional compounds Derivatized into other naphthalene sulfonic acid derivatives via multi-step reactions including sulfonation, oxidation, and reduction

Physical and chemical properties of 135-53-5

Density

1.677g/cm3

Exact Mass

261.991180

LogP

2.23590

Molecular Formula

C10H7NaO5S

Molecular Weight

262.214

PSA

106.04000

Storage condition

Inert atmosphere,Room Temperature

Water Solubility

almost transparency

Spectrums of 135-53-5

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 135-53-5

Q&A for CAS 135-53-5

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.

2. What is the delivery time?
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.

6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.

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

8. Do you have products in stock?
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.

12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.

Download SDS of 135-53-5

Pictograms

Signal Word

Warning

Hazard Statements

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

Safety Data Sheet

Download COA of 135-53-5

CAS/Product ID
*Required fields
Lot/Batch Number
*Required fields

Operate under the ISO 9001 system