What payment methods are accepted?

We accept LC, T/T, D/P, PayPal, and Western Union.

What is the shelf life of the product?

The shelf life is greater than 12 months when stored under normal conditions.

Is OEM service available?

Yes, OEM service is available for clients requiring specific branding or packaging.

99% L-Cysteine Powder with CAS 52-89-3

Name: 99% L-Cysteine Powder with CAS 52-89-3
Brand: Tianjin Zhuofeng Biotechnology Co., Ltd.
SKU: 2046760152

Tianjin, ChinaTianjin Zhuofeng Biotechnology Co., Ltd.

US$1,150.00-1,320.00

10 Tons

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

CAS No.

56-89-3

Formula

C6h12n2o4s2

Model NO.

L-Cysteine

EINECS

601-295-4

Packaging Material

Paper

Storage Method

Normal

Shelf Life

>12 Months

Nutrient Composition

Vitamin

Resource

Natural

The content of active substances

＞90%

pH

0.8-1.2 (100g/L, H2O, 20 Celsius)

Water Solubility

Melting Point

175 Celsius

Transport Package

Bag

Specification

20KG/BIGS

Origin

China

HS Code

2930909099

Production Capacity

10000ton/Month

Key features

High Purity API: 99% L-Cysteine Powder with CAS 52-89-3, white crystalline powder.

Versatile Applications: Used in food, pharma, cosmetics, and biochemical research as antioxidant.

Flexible Customization: Supports full customization, minor customization, and sample-based design.

Low MOQ: Minimum Order Quantity is 1, suitable for small batch testing.

Fast Lead Time: Average lead time within 15 workdays for both peak and off seasons.

Multiple Payment Options: Accepts LC, T/T, D/P, PayPal, and Western Union for secure transactions.

Global Shipping: Exports via Tianjin Port with FOB, CIF, CFR, and EXW terms available.

Quality Assurance: Meets strict standards for heavy metals, iron, and assay (99.0%-100.5%).

Company profile

High Repeat Buyers ChoiceExperienced TeamIn-stock CapacityCustomization from Samples

Tianjin Zhuofeng Biotechnology Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading Company, Other, Group Corporation CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤11.52h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with R&D personnel, broad customization options, ODM services, and OEM experience for well-known brands. It holds ISO 9001, ISO 22000, and GMP certifications and reports quality-control staffing and broad export-market coverage. However, it launched no new products in the past year, lacks 3D software and SDK capabilities, and has no documented service-assessment or corrective/preventive-action procedures. Complaint handling is supported by a clear procedure and records. Evidence is insufficient to confirm financial strength, production performance, or specific customer cases.

Supplier typeThe supplier is explicitly described as a professional technical supplier. Its stated business scope includes food additives, specialized chemicals, machinery, building materials, textiles, graphene materials, software and auxiliary equipment, indicating a diversified product and business profile.

CertificationsThe supplier reports holding ISO 9001, ISO 22000, and GMP certifications. These are explicit certifications relevant to quality, food-safety, and manufacturing management, although the slices do not provide certificate validity or scope details.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with followed records, and reported service lead times of within 15 workdays in both peak and off-season. However, it has no written service-capability assessment procedures or corrective/preventive-action records, so the evidence supports complaint handling but not a fully documented service system.

R&D capabilityThe supplier has two R&D engineers and provides ODM services, but it launched no new products in the past year and lacks both 3D software design services and an available SDK. The evidence shows some R&D and design capability, but also clear limitations in recent product innovation and software-related development.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full, minor, and flexible customization, and also provides ODM services. This is direct evidence of broad customization support, despite the lack of 3D software design capability.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of experience serving branded customers. No customer names, product examples, order details, or independently verifiable case records are provided.