Maltol CAS 118-71-8 (3-Hydroxy-2-Methyl-4-Pyrone) Purity ≥99.0% (HPLC)
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of 3-Hydroxy-2-Methyl-4-Pyrone (Maltol) (CAS: 118-71-8) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase Maltol, Please contact: alvin@ruifuchem.com
| Chemical Name | 3-Hydroxy-2-Methyl-4-Pyrone |
| Synonyms | Maltol; 3-Hydroxy-2-Methyl-4H-Pyran-4-one; Larixinic Acid; 2-Methyl-3-Hydroxy-4-Pyrone; 2-Methyl-3-Hydroxypyran-4-one; 2-Methyl-3-Hydroxypyrone; 3-Hydroxy-2-Methyl-1,4-Pyrone |
| Stock Status | In Stock, Production Capacity 3500 Tons per Year |
| CAS Number | 118-71-8 |
| Molecular Formula | C6H6O3 |
| Molecular Weight | 126.11 g/mol |
| Melting Point | 160.0~164.0℃(lit.) |
| Boiling Point | 205℃ |
| Density | 1.046 g/mL at 25℃ |
| Solubility | Very Soluble in Chloroform; Soluble in Alcohol; Very Slightly Soluble in Benzene, Ether |
| COA & MSDS | Available |
| Sample | Available |
| Brand | Ruifu Chemical |
| Items | Inspection Standards | Results |
| Appearance | White crystalline powder having a characteristic caramel-butterscotch odor and suggestive of a fruity-strawberry aroma in dilute solution. Complies | |
| Assay | ≥99.0% | 99.96% |
| Melting Point | 160.0~164.0℃ | 161.2~162.1℃ |
| Water by Karl Fischer | <0.50% | 0.07% |
| Residue on Ignition | <0.20% | 0.003% |
| Heavy Metals (as Pb) | ≤10ppm | <10ppm |
| Lead | ≤10ppm | <10ppm |
| Arsenic (As) | ≤3ppm | <3ppm |
| Infrared Spectrum | Conforms to Structure | Complies |
| Conclusion | Has been tested & complies with the FCCIV, USP35 Standard | |
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Store in a tightly closed container. Store in a cool, dry and well-ventilated warehouse away from incompatible substances. Protect from light and moisture. It should not be mixed with foreign odor items. It should not be in direct contact with iron.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery.
C6H6O3 126.11
3-Hydroxy-2-methyl-4-pyrone [118-71-8].
DEFINITION
Maltol contains NLT 99.0% of maltol (C6H6O3), calculated on the anhydrous basis.
IDENTIFICATION
• A. Infrared Absorption 197K
• B. Ultraviolet Absorption 197U
Sample solution: 0.01 mg/mL in 0.1 N hydrochloric acid
Blank: 0.1 N hydrochloric acid
ASSAY
• Procedure
Standard solution: 0.01 mg/mL of USP Maltol RS in 0.1 N hydrochloric acid
Sample solution: 0.01 mg/mL of Maltol in 0.1 N hydrochloric acid
Instrumental conditions
Mode: UV
Analytical wavelength: Maximum at about 274 nm
Blank: 0.1 N hydrochloric acid
Analysis
Samples: Standard solution and Sample solution
Calculate the percentage of maltol (C6H6O3) in the portion of Maltol taken:
Result = (Au/As) × (Cs/Cu) × 100
Au = absorbance of the Sample solution
As = absorbance of the Standard solution
Cs = concentration of USP Maltol RS in the Standard solution (mg/mL)
Cu = concentration of the Sample solution (mg/mL)
Acceptance criteria: NLT 99.0% on the anhydrous basis
IMPURITIES
• Residue on Ignition 281: NMT 0.2%, determined on 1.0 g
• Lead 251: NMT 10 ppm
• Heavy Metals, Method II 231: NMT 20 ppm
SPECIFIC TESTS
• Melting Range or Temperature, Class Ia 741: 160-164
• Water Determination, Method I 921: NMT 0.5%
ADDITIONAL REQUIREMENTS
• Packaging and Storage: Preserve in tight containers, protected from light. No storage requirements are specified.
• USP Reference Standards 11
USP Maltol RS
How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.
Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.
Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.
Quality Assurance? Strict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.
Samples? Most products provide free samples for quality evaluation, shipping cost should be paid by customers.
Factory Audit? Factory audit welcome. Please make an appointment in advance.
MOQ? No MOQ. Small order is acceptable.
Delivery Time? If within stock, three days delivery guaranteed.
Transportation? By Express (FedEx, DHL), by Air, by Sea.
Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.
Custom Synthesis? Can provide custom synthesis services to best fit your research needs.
Payment Terms? Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc.
Hazard Symbols Xn - Harmful
Risk Codes R22 - Harmful if swallowed
R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 - Wear suitable gloves and eye/face protection
UN IDs UN 3334
WGK Germany 3
RTECS UQ1050000
TSCA Yes
HS Code 2932999099
3-Hydroxy-2-Methyl-4-Pyrone (Maltol) (CAS: 118-71-8) is used as food additives, flavors, flavor enhancers and fragrances, can be used for tobacco flavor.
Maltol is widely used as flavor enhancer to improve mouthfeel and to enhance flavor of candy and baked foods in food production and of soft drinks in beverage industry. It is used as intermediate in pharmaceutical for medicine manufacturing. It is used as flavoring agent in cosmetic and personal care industries to enhance flavor. According to FEEDAP Panel, maltol is safe to be added to feed for all animal species at the normal use level of 5 mg/kg feed.
Maltol is a kind of broad-spectrum taste enhancer featured with taste increase, enhancement and sweetener. It can be used for flavoring agents, perfume chemicals etc. and widely applied in tobacco, wine, cosmetics, and other industries, highlighting obvious effects.
Maltol and Ethyl Maltol are often added as food flavoring agents to baked foods, ice creams and candies. The addition amount of maltol is about 110μg/kg. According to calculations, the average amount of maltol and ethyl maltol is The daily intake is 5-29 mg, but in some people, the actual consumption level may be several times this average.
May be sensitive to prolonged exposure to light and air. Somewhat soluble in water at room temperature. Freely soluble in hot water [Merck]. Slightly soluble in cold water.
Safety Profile: Moderately toxic by ingestion, intraperitoneal, and subcutaneous routes. A skin irritant. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
Storage: Maltol solutions may be stored in glass or plastic containers. The bulk material should be stored in a well-closed container, protected from light, in a cool, dry place.
Incompatibilities: Concentrated solutions in metal containers, including some grades of stainless steel, may discolor on storage.
Regulatory Status: GRAS listed. Included in the FDA Inactive Ingredients Database (oral solutions and syrups). Included in the Canadian List of Acceptable Non-medicinal Ingredients.
