1. Product Overview

Sodium Butyrate (CAS:156-54-7) is the sodium salt of butyric acid. We provide two types:

• Uncoated Sodium Butyrate Powder (pure raw powder)
• Coated / Encapsulated Sodium Butyrate (fat-protected granular form)

Butyrate is the preferred energy substrate for intestinal epithelial cells. Both products are widely used as feed additives to improve animal gut health, lower diarrhea incidence and optimize growth performance for livestock, poultry and aquatic animals.

2. Basic Chemical Information

Active Ingredient: Sodium Butyrate

CAS No.: 156-54-7

Molecular Formula: C4H7NaO2

Molecular Weight: 110.09

Appearance: White / off-white hygroscopic fine powder

Odor: Strong characteristic butyric rancid odor

Characteristic: No protective coating; dissolves rapidly in water and gastric fluid; releases butyrate starting from stomach.

Coated Sodium Butyrate (Encapsulated Granule)

Appearance: White to off-white free-flowing cylindrical pellets

Odor: Mild fat smell; effectively masks the pungent butyrate odor

Coating material: Food-grade vegetable fat

Characteristic: Acid-resistant coating; passes through stomach, targeted sustained release in small intestine and colon.

3. Core Features Comparison

Sodium Butyrate Powder

Advantages

- Fast dissolution speed

Disadvantages

- Strong unpleasant odor

- Absorbed partially in stomach, low intestinal delivery efficiency

Coated Sodium Butyrate

Advantages

- Odor greatly reduced, better production operation environment

- Resists gastric acid, maximum active substance reaches the intestine

- Good fluidity, anti-caking, easy mixing with feed premix

- Targeted intestinal action, higher bioavailability

Disadvantages

- Higher price than uncoated powder

4. Main Applications

Animal Feed Industry (Main Market)Additive for piglets, broilers, laying hens, ruminants, fish and shrimp:

- Nourish intestinal villi, repair intestinal barrier

- Reduce weaning stress diarrhea

- Inhibit harmful bacteria, promote beneficial flora reproduction

- Improve feed conversion ratio, boost weight gain

- Reduce antibiotic application in breeding

Other Applications

- Raw material for gut-health nutritional supplements, biochemical research reagents.

5. Typical Specifications

Sodium Butyrate Powder

Assay: ≥98.0%

Moisture: ≤1.0%

Heavy Metal (Pb): ≤10 ppm

Arsenic (As): ≤1 ppm

Coated Sodium Butyrate Two standard grades:

98% Coated Sodium Butyrate

Active sodium butyrate ≥98.0%

Active sodium butyrate ≥90.0%

Moisture: ≤1.0%

Heavy Metal (Pb): ≤10 ppm

Arsenic (As): ≤1 ppm

6. Packing & Storage

Packing: 25kg composite paper bag with PE inner liner; sample packaging available.

Shelf Life: 12 months under proper sealed storage.

7. Safety & Transportation

Avoid dust inhalation, prevent direct skin & eye contact.