How do you treat quality complaint?

First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.

Naphthol as-BS CAS 135-65-9 3-Hydroxy-3'-Nitro-2-Naphthanilide

Name: Naphthol as-BS CAS 135-65-9 3-Hydroxy-3'-Nitro-2-Naphthanilide
Brand: Hunan Yunbang Biotech Inc.
SKU: 2108675185

Hunan, ChinaHunan Yunbang Biotech Inc.

Negotiable

1 Kg

Sample price:US$2.00/bag.Request sample

Product profile

Customization

Available

CAS No.

135-65-9

Formula

C17h12n2o4

Model NO.

YBC004

EINECS

205-209-2

Environmental Protection

Color

Light Yellow to Brown to Dark Green

Appearance

Particulate/Powder

Quality

Refined

Colour

Light Yellow to Brown to Dark Green

Samples

Available

Certificates

ISO9001/SGS

Package

1g/5g/25g/100g/1kg/5kg/10kg/25kg

Stocks

in Stock

Lead Time

5-7 Working Days

Shelf Life

2-3 Years

Site Audit

Available

Transport

Air/Express/Sea

MOQ

10g

Transport Package

Drum/Bottle/Bags

Specification

95%

Trademark

Yunbang

Origin

China

Key features

Customization Options: Customization from designs and minor customization available.

Free Samples: Most products provide free samples, shipping cost paid by customer.

Fast Delivery: Lead time is 3 to 5 days after receiving advance payment.

Quality Guarantee: Free replacement or refund for quality problems caused by us.

Wide Payment Terms: Accept T/T, Western Union, D/P, LC, PayPal, and small-amount payment.

Low MOQ: Minimum order quantity starts from 1 gram.

Multiple Package Sizes: Available in 1g, 5g, 25g, 100g, 1kg, 5kg, 10kg, and 25kg.

Global Shipping: Transport via Air, Express, or Sea to worldwide destinations.

Company profile

Hunan Yunbang Biotech Inc.

Hunan, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Designs, Minor Customization CertifiedExport Year: 4 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryHunan Yunbang Biotech Inc. is a China-based manufacturer/factory and limited company in Hunan, focused on biochemicals, chemicals, health, and medicine. The supplier reports documented service, complaint-handling, corrective-action, quality-assurance, traceability, and quality-control procedures. It offers OEM services for popular brands and has attended Milan CPHI 2024, but reports no ODM, SDK, overseas warehouse, overseas showroom, or overseas agent/branch capability. Financial information is present for multiple years, but the slices do not provide sufficient non-financial evidence to assess financial strength. An audit by TUVRHEINLAND is identified with a valid report period, while the stated audit result is not interpretable as a certification or pass determination from the provided context.

Supplier typeThe supplier is identified as Hunan Yunbang Biotech Inc., a manufacturer/factory and limited company based in Changsha, Hunan, China. Its primary product is listed as biochemicals, with commercial engagement in health, medicine, and chemicals.

After-Sales capabilityThe supplier reports a documented and followed customer-complaint procedure, service-capability procedures, corrective and preventive action records, and quality-control records. It also reports lead times within 15 workdays in both peak and off-season, but has no overseas warehouse, showroom, agent, or branch capability.

Production capacityThe supplier is classified as a manufacturer/factory, and its business scope includes manufacturing biobased materials and producing chemical products. This explicitly supports manufacturing capability in its stated product fields.

Customization capabilityThe supplier explicitly reports OEM capability for popular brands, supporting customized manufacturing under customer or brand requirements. It does not provide ODM services, so customization is evidenced for OEM rather than end-to-end product design.

Product Q&A

Q:Can I get some samples before bulk order?

Most products provide free samples, but the shipping cost be paid by customers.

Q:What's your MOQ?

We can have a discussion.

Q:Which kind of payment terms do you accept?

PI will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union, D/P, ETC.

Q:How to place an order?

You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.

Q:How about your delivery time?

Generally, it will take 3 to 5 days after receiving your advance payment.