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magnesium hydrogen citrate | Magnesium Citrate | E332 Magnesium Fortifier & Acidity Regulator

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Unit Price:

$500-600/MT FOB

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CAS No.:

144-23-0

Grade:

Food Grade

Content:

14.5%

Port:

qingdao

Packaging:

25kgs/drum

Sample Available:

Yes

Price valid (until):

2026-11-15

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PREMIUM INGREDIENT CO.,LTD

Company Type:

Manufactory

Location:

United Kingdom

Payment Terms:

TT against copy of documents,L/C

Average Lead Time:

80 days

Qualification:

Main Products:

l-lysine monohydrochloride,dl-methionine,n-acetyl-l-cysteine,l-methionine,glycine,l-cysteine hcl monohydrate

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Basic Product Information:

Parameter	Details
English Name	Magnesium Citrate
Synonyms	Trimagnesium Dicitrate
E Number	E332
Appearance	White crystalline powder
Solubility	Solubility varies with hydration forms
Odor	Odorless
Available Forms	Anhydrous, Nonahydrate, Dodecahydrate

Magnesium Citrate Hydrate Grades Comparison Table

Hydrate Type	Common Name	CAS Number	Molecular Formula	Core Characteristics	Main Applications
Anhydrous	Magnesium Citrate Anhydrous	3344-18-1	C₆H₄Mg₃O₇	Highest magnesium content, low moisture, good thermal stability	Dietary supplements, pharmaceutical formulations
Nonahydrate	Magnesium Citrate Nonahydrate	153531-96-5	C₆H₄Mg₃O₇·9H₂O	Excellent water solubility, high bioavailability, moderate magnesium content	Food fortification, magnesium supplement raw material, functional beverages
Dodecahydrate	Magnesium Citrate Dodecahydrate	1198-97-6	C₆H₄Mg₃O₇·12H₂O	High crystal water, mild taste, stable crystal structure	Food acidity regulator, nutritional powder, solid supplement formulations

Product Overview

Magnesium Citrate (E345) is a series of food-grade organic chelated magnesium salts, mainly available in Magnesium Citrate Anhydrous, Magnesium Citrate Nonahydrate, and Magnesium Citrate Dodecahydrate. As a premium bioavailable magnesium fortifier and professional acidity regulator, it outperforms inorganic magnesium sources in absorption efficiency and gastrointestinal tolerance.

This product series stabilizes system pH, modifies unpleasant mineral metallic taste, optimizes powder fluidity, and prevents caking. It is extensively applied in dietary supplements, chewable tablets, multivitamin mineral premixes, and solid beverage formulations.

Character

1.All grades are odorless crystalline powder with clean, mild taste, no harsh bitterness, friendly for flavored food formulations.

2.Organic chelated magnesium structure delivers far higher bioavailability than magnesium oxide and magnesium hydroxide, ensuring efficient magnesium nutrient absorption.

3.Mild acidic buffering property enables precise pH adjustment without drastic system pH fluctuation, protecting formula stability.

4.Low gastrointestinal irritation at standard dosage, suitable for long-term nutritional supplement formulations.

5.Good thermal stability under conventional food processing and storage conditions, no easy decomposition or ingredient reaction.

6.Excellent powder dispersion performance, compatible with various vitamin and mineral premix systems.

7.Three water-content grades cover diverse formula demands: high flowability, balanced magnesium content, and mild taste customization.

8.Fully compliant with global food safety standards and religious certifications, suitable for worldwide food and supplement export.

Main Functions

1.High-Bioavailability Magnesium Fortification Function Serves as an efficient organic magnesium fortifier, providing easily absorbable magnesium nutrition for human body. It compensates daily magnesium deficiency, supports body basic metabolism, and is the core nutritional additive for dietary supplements and functional solid foods.

2.Professional Acidity Regulation & pH Buffering Function Acts as a stable acidity regulator in food systems. It moderately neutralizes excess acidity, balances overall formula sourness, maintains long-term stable pH value of tablets, powder premixes and solid beverages, and avoids quality deterioration caused by pH drift.

3.Professional Taste Modifying & Flavor Stabilizing Function Effectively covers and reduces the metallic bitter and astringent taste brought by inorganic minerals in compound premixes. It optimizes the mouthfeel of chewable tablets and solid drinks, locks fresh flavor during storage, and improves finished product palatability.

4.Anti-Caking & Powder Flow Optimizing Function Improves the bulk fluidity of mixed mineral and vitamin powders, reduces fine powder agglomeration and moisture caking during production, filling and storage. It ensures uniform ingredient mixing and consistent finished product quality.

Applications

1.Food & Dietary Supplement Industry

This Magnesium Citrate series is the preferred magnesium fortification and acidity regulation material for global nutraceutical manufacturers.

Magnesium Citrate Nonahydrate : – Maximum market dosage Widely used in regular dietary supplement tablets, hard capsules, daily multivitamin mineral premixes, and ordinary solid beverages. Its outstanding flowability and formula compatibility make it the most cost-effective and universal grade for mass production.

Magnesium Citrate Anhydrous: Applied in high-end nutritional powders, high-dose magnesium supplement tablets and capsules. Features high magnesium content and low moisture absorption, ideal for formulas requiring strict moisture control.

Magnesium Citrate Dodecahydrate: Mainly used in high-demand mild-taste chewable tablets, children’s nutritional powders and low-irritation functional solid drinks, focusing on taste optimization and mild formula performance.

2.Confectionery & Functional Solid Food

Suitable for pressed candies, functional snack powders and fortified cereal products. It achieves dual effects of mineral nutrition enhancement and taste optimization without affecting product original flavor and texture.

3. Pharmaceutical Industry

Pharma-grade Magnesium Citrate (mainly Nonahydrate and Anhydrous) is used in oral nutritional preparations and mild conditioning formulations, with limited industrial consumption, not the core business scope.

Packaging and Storage

Packaging: 25kg multi-ply paper bags with inner PE liner; jumbo bags (500kg/1000kg) for bulk shipment; fiber drum packaging available for pharmaceutical-grade products.

Storage Requirements: Store in cool, dry, ventilated warehouse. Keep away from moisture, strong acid substances, direct sunlight and high heat environment.

Specification	USP36	EP8.0
Content (Mg),w/%	14.5-16.4	15.0-16.5
Calcium (Ca),w/% ≤	1.0	0.2
Iron (Fe),w/% ≤	0.02	0.01
Arsenic (As),w/% ≤	0.0003	————
Chloride,w/% ≤	0.05	————
Heavy metal,w/% ≤	0.005	0.001
Sulphate,w/% ≤	0.2	0.2
pH (5% solution)	5.0-9.0	6.0-8.5
Loss on drying,w/% ≤	29.0	24.0-28.0
Oxide,w/% ≤	————	0.028

ECHEMI Editorial Reference

White powderChEBI: A magnesium salt composed of magnesium and dibasic citrate ions in a 1:1 ratio.
Magnesium citrate is a magnesium salt composed of magnesium and dibasic citrate ions in a 1:1 ratio. It has a role as a laxative and a food acidity regulator. It contains a 3-carboxy-3-hydroxypentanedioate.

Basic Info

Product Name:

Magnesium hydrogen citrate

Other Name:

1,2,3-Propanetricarboxylic acid,2-hydroxy-,magnesium salt (1:1);Citric acid,magnesium salt (1:1);Magnesium citrate;Acid magnesium citrate;Citresia;Magnesium citrate soluble;Magnesium citrate,dibasic;Magnesium hydrogen citrate;Citronema;Epimag;Nanoveson MCL

CAS No.:

144-23-0

Molecular Formula:

C6H8O7.Mg

InChIKeys:

InChIKey=ROYPGAQNKYWYDI-UHFFFAOYSA-N

Molecular Weight:

214.41

Exact Mass:

213.996399

EC Number:

231-923-9

HScode:

2918150000

Categories:

Nutrition Supplements

Characteristics

PSA:

110.13000

XLogP3:

-1.40270

Appearance:

White powder

Boiling Point:

309.6ºC at 760mmHg

Flash Point:

155.2ºC

Water Solubility:

slightly soluble H2O; soluble dilute acids

Storage Conditions:

Store at RT.

See More Magnesium hydrogen citrate Properties 

Hazard Identification

Classification of the substance or mixture

Skin irritation, Category 2

Eye irritation, Category 2

Specific target organ toxicity â single exposure, Category 3

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 H335 May cause respiratory irritation
Prevention	P264 Wash ... thoroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
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. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. P405 Store locked up.
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

Handling and Storage

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.

See More Magnesium hydrogen citrate Safety Data Sheet 

Seller Information

Business Type: Manufactory
Main Products: l-lysine monohydrochloride,dl-methionine,n-acetyl-l-cysteine,l-methionine,glycine,l-cysteine hcl monohydrate
Location: dongsheng road
Payment Terms: TT against copy of documents,L/C
Average lead Time: 80 days
Total Annual Revenue: $5 million-$10 million
Total Employees: 5-10
Year of Establishment: 2015

Premium Ingredient specializes in supplying and distributing food & feed amino acids, food additives and functional ingredients for more than a decade.

Our food additives portfolio covers phosphates, acidulants, preservatives, sweeteners, thickeners and leavening agents.

Our functional ingredients include vitamins, mineral products, botanical extracts, nutraceutical ingredients, functional fibers & bulking agents.

We serve over 100 clients across food & beverage, dietary supplement, sports nutrition, personal care, pharmaceutical and animal feed sectors, with products exported to dozens of countries worldwide. All our goods are sourced from top-tier Chinese manufacturers with proven expertise and complete management systems.

◆Amino Acids	◆ phosphates	◆ acidulants
◆ preservatives	◆ sweeteners	◆ functional fiber&bulking agent
◆ thickeners	◆ Leavening agents	◆ mineral products
◆ Botanical extracts	◆ vitamins	◆ nutritional products

Backed by over 10 years of industry experience, we provide one-stop-shop solutions combining high-grade products, prompt communication, on-time delivery and real-time market intelligence. Thanks to our long-term deep-rooted partnerships with source manufacturers, we can guarantee sufficient inventory, stable pricing and fast shipment.

Our third-party certifications include ISO9001, ISO14001, HACCP, HALAL, KOSHER, GMP, FAMI-QS and more. You can count on Premium Ingredient as your trusted global raw material supplier.

------------------------------------- Mission------------------------------------

Acting as a bridge between reliable Chinese manufacturers and global buyers, we carefully select partner factories with mature production capabilities and sound management systems. We deliver not only premium-quality raw materials, but also value-added services including market trend updates, supply chain risk alerts, product formulation consultation, consolidated sample shipment and full document support for import compliance. We timely forward overseas customers’ requirements to our partner factories to support product upgrading and achieve mutual growth.

-------------------------------------Our Quality------------------------------------

Our Quality

As a professional ingredient supplier, we do not operate manufacturing facilities. Instead, we build robust quality‑assurance workflows across our whole supply chain to safeguard consistent product performance for every shipment

Strict Supplier Due‑Diligence

Before entering any partnership, we carry out on-site factory visits and assess industry reputation, followed by multi-stage qualification reviews. We validate production qualifications, export track records, quality management systems and complete certification packages. New suppliers must pass sample evaluation, and only fully vetted top-tier factories are admitted to our approved supplier pool

Batch‑by‑batch Document Verification

For every order, we cross‑check factory‑issued test documents against agreed specifications including FCC, USP, EP, AJI, CP or your customized requirements. We will not forward documents to customers until key indicators are fully aligned with specifications. This step avoids inconsistent or mismatched documentation common in raw‑material trade.

Independent Third‑party Testing Coordination

Upon client request, we can arrange independent laboratory inspections from recognized third‑party institutions. We manage sample delivery, test protocol communication and report follow‑up to support your market compliance needs.

Quality Closure & Continuous Improvement

We keep traceable records for all delivered batches. If any quality concern arises, we act as your single point‑of‑contact to trace root causes with source factories, drive corrective actions and deliver practical resolution plans. Client feedback is systematically collected to optimize our supplier management and document‑review procedures.

We provide a comprehensive set of compliance documents to support your import and registration work. Our available documentation includes but is not limited to:

★ ISO Certification ★ Halal Certificate

★ Kosher Certificate ★ IP certificate

★ Haccp certificate ★ Allergens with Glutens

★ GRAS Statement ★ HACCP Program

★ BSE/TSE Statement ★ Certificate of Analysis

★ Country of Origin Certificate ★ Material Safety Data Sheet

★ Flow Chart (product processing) ★ Food Grade Certificate

★ Nutritional Information ★ GMO Statement

★ Specification Sheet

Inquiry History