Norethisterone Base & Acetate API

Name of Product Norethisterone Base & Acetate
CAS No 51-98-9
Therapeutic use:- Hormones
Grade BP/USP
Form:- API Powder
Status Commercial
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We are a 100% export-oriented company and do not engage in domestic sales within India.

Product Overview

While being similar hormone APIs, their applications are different at the production stage.

In this case, the base form is an active substance, while the acetate form was modified to provide different behavior during absorption and preparation of the dosage form.

Thus, the availability of two similar compounds increases the options for selecting the appropriate raw material based on the desired characteristics of the product.

Moreover, having such alternatives is important for a product developer.

Indeed, different products may require the use of one or the other API due to their differences in terms of the application of a certain dosage form.

Therapeutic Applications

Norethisterone base and acetate are APIs, which find application in the formulation of products based on hormones.

During the product development stage, these APIs are selected for approved formulations requiring progestogen activity.

In particular, it is possible to select either the base form of the compound or its acetate form depending on the requirements of the final product.

Specification Parameters

Norethisterone Base

  • CAS Number: 68-22-4

  • Chemical Name: Norethisterone

  • Molecular Formula: C20H26O2

  • Molecular Weight: 298.42 g/mol

  • Appearance: White to almost white crystalline type powder

  • Solubility: Slightly soluble in alcohol; practically insoluble in water

  • Purity (HPLC): Not below than 98.0%

  • Loss on Drying: Not above 1.0%

  • Identification Tests: IR, HPLC, and related standard tests

Norethisterone Acetate

  • CAS Number: 51-98-9

  • Chemical Name: Norethisterone acetate

  • Molecular Formula: C22H28O3

  • Molecular Weight: 340.46 g/mol

  • Appearance: White to almost white crystalline type powder

  • Solubility: Slightly soluble in alcohol; practically insoluble in water

  • Purity (HPLC): Not below than 98.0%

  • Loss on Drying: Not above 1.0%

  • Identification Tests: IR, HPLC, and related standard tests

Packaging & Storage

The norethisterone base or acetate will be contained in hermetically sealed and light-resistant packs.

The types of packs may include HDPE drums or fiber drums that are fitted with inner plastic bags.

The packs will be labeled with the name of the product, the batch number, net weight, and expiry or retest period.

The substance should be kept in cool and dry areas.

It needs to be protected from extreme heat, direct sunlight, and moisture. Always seal the pack tightly after opening.

Why Choose Us

We do more than supply the API. We focus on stable quality, clear support, and a supply you can rely on.

Each batch is checked before release, and we provide key documents such as CoA, SDS, and basic technical data in a simple, clear format.

We also support project stages from lab work to pilot and full production.

Our aim is to make sourcing easier with steady quality, low impurity levels, simple communication, and reliable long-term support.

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