Vitamin K3 | MSB & MNB | Animal Nutrition - - PREMIUM INGREDIENT

Vitamin K3 | Menadione Sodium Bisulfite Trihydrate (MSB.3H2O) CAS 6147-37-1 | Menadione Nicotinamide Bisulfite (MNB) CAS 73581-79-0 | Animal Nutrition Raw Material

Categories:

Vitamines

CAS No:

73581-79-0

3 / 1

Description

Certificates

Basic Info

Characteristics

Hazard Identification

Handling and Storage

Basic Information

Vitamin K3
Product Type	Fat-soluble vitamin, feed grade
Available Forms	MSB (Menadione Sodium Bisulfite) MNB (Menadione Nicotinamide Bisulfite)
CAS No. (MSB.3H2O)	6147-37-1
CAS No. (MNB)	73581-79-0
Available Form	White crystalline powder
Common Specifications	MSB: menadione content ≥ 94% MNB: menadione content ≥ 43%
Main Application	Animal feed premixes

Product Overview

Vitamin K3 (Menadione) feed grade has two equivalent commercial forms: MSB (Menadione Sodium Bisulfite) and MNB (Menadione Nicotinamide Bisulfite). Both are yellow crystalline powders designed for animal nutrition. MSB is a cost-effective option for conventional feed production, while MNB features enhanced heat and moisture stability for demanding feed granulation processes. They are essential vitamin K sources for livestock and aquatic animal feed formulations.

MSB VS MNB — Core Difference Comparison Table

Comparison Item	MSB (Menadione Sodium Bisulfite)	MNB (Menadione Nicotinamide Bisulfite)
Menadione Content	≥ 94% (high concentration)	≥ 43% (lower concentration)
Stability	Lower; sensitive to moisture, heat and oxidation	Better; more stable in premix blending
Solubility	Freely soluble in water	Soluble in water
Primary Use	Concentrated feed premix, vitamin preblend	Multi-vitamin premix, stable feed formulation
Handling	More reactive, requires careful storage	Easier to handle, better flowability
Cost Efficiency	Higher activity per kg, more concentrated	Lower activity per kg, but more stable and convenient
Typical Customer	Feed premix manufacturers, vitamin preblend producers	Compound feed factories, integrated feed mills

Character

MSB and MNB are yellow crystalline powders. MSB provides reliable performance and cost advantages for general feed premix. MNB has outstanding resistance to high temperature and humidity, preserving activity during feed pelleting. Both materials blend smoothly with other vitamins and mineral ingredients in feed formulas.

Main Functions

1.Essential Vitamin K Nutrient for Animals: Both MSB and MNB supply vital vitamin K to support normal blood coagulation function in livestock and aquatic animals.

2.Two Parallel Feed Grade Options for Different Processing Requirements: MSB is economical for standard feed formulations. MNB offers superior stability under high temperature and humid feed processing conditions.

3.Good Compatibility for Feed Premix: Compatible with other feed vitamins and minerals, maintaining activity during feed manufacturing and storage.

4.Cost-Effective Feed Fortification Source: Widely adopted vitamin K raw materials for animal nutrition formulations.

Applications

Animal Feed: MSB and MNB are widely used in livestock and aquaculture feed premixes and complete feed. MSB is suitable for general feed formulations, while MNB is preferred for high-temperature granulation processes requiring stronger stability.

Packaging & Storage

Packing: 25kg/fiber drum with inner polyethylene bag

Storage: Cool, dry, dark and ventilated place, tightly sealed

Shelf Life: 24 months under proper sealed storage

Product Name:	Menadione nicotinamide bisulfite	Other Name:	2-Naphthalenesulfonic acid,1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-,compd. with 3-pyridinecarboxamide (1:1);3-Pyridinecarboxamide,mono(1,2,3,4-tetrahydro-2-methyl-1,4-dioxo-2-naphthalenesulfonate);Menadione nicotinamide bisulfite
CAS No.:	73581-79-0	Molecular Formula:	C11H10O5S.C6H6N2O
InChIKeys:	InChIKey=DRDSBZXTAXDLDZ-UHFFFAOYSA-N	Molecular Weight:	376.38400
Exact Mass:	376.07300	Categories:	Vitamins and Minerals Medicines

PSA:	142.86000	XLogP3:	2.94600
Appearance:	pale yellow powder	Melting Point:	182ºC
Boiling Point:	507.3ºC at 760 mmHg	Flash Point:	260.6ºC

Classification of the substance or mixture

Skin irritation, Category 2

Eye irritation, Category 2

Hazardous to the aquatic environment, short-term (Acute) – Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) – Category Chronic 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H315 Causes skin irritation H319 Causes serious eye irritation H410 Very toxic to aquatic life with long lasting effects
Prevention	P264 Wash … thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/… P273 Avoid release to the environment.
Response	P302+P352 IF ON SKIN: Wash with plenty of water/… P321 Specific treatment (see … on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P391 Collect spillage.
Storage	none
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.