What are the payment terms?

Payment terms include 50% TT in advance and 50% TT against copy of Bill of Lading, as well as LC, D/P, PayPal, and Western Union.

What is the lead time for delivery?

The average lead time is within 15 working days for both peak and off-season periods.

Is this product suitable for food grade applications?

Yes, it meets food grade specifications and is used as a flavoring agent, nutritional supplement, and spice under China GB 2760-86.

Factory Wholesale High Quality L-Proline Powder 99% Purity

Name: Factory Wholesale High Quality L-Proline Powder 99% Purity
Brand: Tianjin Zhuofeng Biotechnology Co., Ltd.
SKU: 2060709082

Tianjin, ChinaTianjin Zhuofeng Biotechnology Co., Ltd.

US$3.20

1,000 kg

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

CAS No.

147-85-3

Formula

C5h9no2

Model NO.

food additives

EINECS

205-702-2

Packaging Material

Paper

Storage Method

Normal

Shelf Life

>12 Months

Nutrient Composition

Protein

Resource

Natural

The content of active substances

＞90%

Payment

50% Tt in Advance, 50% Tt Against Copy Bl

MOQ

1000kg

Appearance

White Powder

Type

Organic Intermediate

Transport Package

Bag

Specification

25kg/Bag

Trademark

Origin

China

HS Code

2914620000

Production Capacity

1000 Tons/Year

Key features

High Purity L-Proline: 99% purity with strict quality control and detailed testing specifications.

Dual Grade Application: Available in Medicine Grade for injections and Food Grade for additives.

Pharmaceutical Intermediate: Key raw material for synthesizing Captopril and antihypertensive drugs.

Nutritional Supplement: Essential for protein synthesis, infusion, and treating malnutrition.

Direct Factory Supply: High-quality products directly supplied ensuring sufficient stock.

24/7 Professional Support: Online technical service available around the clock to solve problems.

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

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: ≤10.74h

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.

Product Q&A

Q:What is the purity of the L-Proline powder?

The L-Proline powder has a purity of 99%, with assay results ranging from 98.5% to 101.5% on a dry content basis.

Q:What are the main applications of this product?

It is used as a pharmaceutical intermediate for drugs like Captopril, a nutritional supplement for amino acid infusions, and a food additive for flavoring.

Q:Is customization available for orders?

Yes, we offer full customization, minor customization, and customization from samples or designs.

Q:What is the minimum order quantity (MOQ)?

The standard MOQ is 1000kg, though general company info lists 1 as a baseline for trading flexibility.

Q:How should the product be stored?

Store in a cool and dry place, away from strong light and heat. Do not freeze the product.