What are the accepted payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the main function of L-Thyroxine?

It is used to treat thyroid hormone deficiency, manage thyroid cancer, and regulate metabolism.

Can I get a sample before placing a bulk order?

Yes, samples are available for customization and evaluation purposes.

Factory 99% Levothyroxine T4 Powder CAS 51-48-9 Thyroid Therapy L-Thyroxine

Name: Factory 99% Levothyroxine T4 Powder CAS 51-48-9 Thyroid Therapy L-Thyroxine
Brand: Xi'an Xinlu Biotechnology Co., Ltd.
SKU: 2056242622

Shaanxi, ChinaXi'an Xinlu Biotechnology Co., Ltd.

US$4.00-8.00

1 g

Sample price:US$8.00/g.Request sample

Product profile

Customization

Available

Powder

Yes

Customized

Model NO.

A104

Certification

GMP, HSE, ISO 9001, USP, BP

Suitable for

Adult

State

Powder

Purity

>99%

Name

L-Thyroxine

Appearance

White Powder

Assay

99%

CAS

51-48-9

OEM

Available

Sample

Available

Suitable

Adult

Function

Thyroid Therapy

MOQ

Transport Package

Foil Bag

Specification

Trademark

Origin

China

Production Capacity

10000 Kgs Per Month

Key features

High Purity Standard: Purity exceeds 99% with white powder appearance for optimal therapeutic efficacy.

Comprehensive Certifications: Certified under GMP, HSE, ISO 9001, USP, and BP standards for quality assurance.

OEM and ODM Services: Full customization available including samples, designs, and flexible minor adjustments.

Thyroid Therapy Application: Synthetic T4 identical to natural hormone for treating hypothyroidism and cancer management.

Metabolic Regulation Support: Converts to active T3 form to regulate energy, heart rate, and body temperature.

Growth and Development Aid: Essential for bone growth and brain development during infancy and childhood.

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

Flexible Payment Options: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Company profile

In-stock CapacityFast DeliveryOEM ServicesR&D Capabilities

Xi'an Xinlu Biotechnology Co., Ltd.

Shaanxi, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.61h

AI-Powered supplier vetting

SummaryXi'an Xinlu Biotechnology Co., Ltd. was established in 2015 and specializes in the R&D, production, processing, and sales of natural plant extracts and pharmaceutical intermediates. Its stated product range includes Matrine, Oxymatrine, Magnolol, Honokiol, Gentiopicroside, Cytisine, and other compounds. The supplier reports OEM service for well-known brands, in-stock capability, broad customization options, and export activity accounting for 51%–70% of total sales. However, it reports no available SDK, no overseas warehouse, showroom, agents, branches, or offline trade-show participation. Quality-system evidence is weak: there are no written corrective-action or complaint-handling procedures, and quality-control testing equipment is reported as zero. Certification, raw-material traceability, environmental documentation, fire-drill practices, and manufacturing-contract status remain unverified.

Supplier typeThe supplier is a biotechnology company focused on the R&D, production, processing, and sales of natural plant extracts and pharmaceutical intermediates. Its permitted business scope also includes pre-packaged food, non-food health products, and import/export activities, indicating a manufacturer and trading-capable supplier rather than a purely service-based company.

After-Sales capabilityThe supplier reports in-stock service capability and accepts FOB, CIF, CFR, and EXW quotation terms. Nevertheless, it has no overseas warehouse, showroom, agents, or branches, and reports no written procedures or records for customer complaint handling or corrective and preventive actions, which is a stated service-process deficiency.

R&D capabilityThe supplier describes itself as having R&D capability, offers customized product development, and can cooperate with customers to develop new products. However, it explicitly reports no available SDK, so software-development integration capability is absent; overall innovation strength is only partially evidenced.

Production capacityThe supplier describes production and processing capabilities, lists multiple plant-derived compounds, operates from a site of about 10,000 square meters, and reports inventory capability. However, manufacturing-contract status is unknown and the quality-control section reports zero testing equipment, creating a material concern about documented production-control capability.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also states that it can produce according to customer needs and cooperate in developing new products, providing direct evidence of broad customization capability.