Dimethyl dicarbonate
CAS Number: 4525-33-1
Chemical Formula: C4H6O5
Synonyms:
methylpyrocarbonate
oxydi-formicacidimethylester
PYROCARBONIC ACID DIMETHYL ESTER
Appearance: Transparent Oil Liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Product Details
Dimethyl dicarbonate (DMDC), also known as Viguolin, is a juice beverage preservative (INS No. 242) permitted under China’s food additive standards. At normal or low temperatures, DMDC strongly kills many spoilage bacteria in juice drinks. Its preservative action comes from modifying and inactivating key bacterial enzymes. Compared with physical sterilization, DMDC is low-cost, easy and safe to use, and does not alter product taste, aroma, or color. It is a major focus in modern non‑thermal sterilization research.
Parameters
| Property | Value |
| Melting point | 15–17°C |
| Boiling point | 45–46 °C 5 mm Hg(lit.) |
| density | 1.25 g/mL at 25 °C(lit.) |
| vapor pressure | 0.7 hPa (20 °C) |
| refractive index | n20/D 1.392(lit.) |
| Fp | 80 °C |
| storage temp. | Store below +30°C. |
| solubility | 35g/l (decomposition) |
| form | Oil |
| color | Colourless |
| explosive limit | 3–29.9%(V) |
| Water Solubility | 35g/L (decomposition) |
| BRN | 956715 |
| Stability: | Moisture Sensitive |
| InChI | 1S/C4H6O5/c1-7-3(5)9-4(6)8-2/h1-2H3 |
| InChIKey | GZDFHIJNHHMENY-UHFFFAOYSA-N |
| SMILES | O(C)C(=O)OC(=O)OC |
| LogP | 0.082 (est) |
| EPA Substance Registry System | Dicarbonic acid, dimethyl ester (4525-33-1) |
Safety Information
| Item | Details |
| Hazard Codes | T |
| Risk Statements | 21/22-23-34 |
| Safety Statements | 18-26-28-36/37/39-38-45 |
| RIDADR | UN 2927 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | HT0362500 |
| F | 9-21 |
| Autoignition Temperature | 465 °C |
| TSCA | TSCA listed |
| HS Code | 2920 90 10 |
| HazardClass | 6.1(a) |
| PackingGroup | II |
| Storage Class | 6.1A – Combustible, acute toxic Cat. 1 and 2 very toxic hazardous materials |
| Hazard Classifications | Acute Tox. 2 Inhalation; Acute Tox. 4 Oral; Eye Dam. 1; Skin Corr. 1B |
| Hazardous Substances Data | 4525-33-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 335 mg/kg; LD50 dermal Rat > 1250 mg/kg |
Product Application
Dimethyl Dicarbonate (DMDC) is a microbial control agent used in wine, ready-to-drink teas, nonjuice-containing beverages, carbonated dilute beverages with juice or fruit flavor (juice content ≤50%).
DMDC is widely used as a broad‑spectrum antimicrobial agent. Its main targets are yeasts including Saccharomyces, Zygosaccharomyces, Rhodotorula, Candida, Pichia, Torulopsis, Torula, Endomyces, Kloeckera, and Hansenula. It is also bactericidal against Acetobacter pasteurianus, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, multiple Lactobacillus species, Pediococcus cerevisiae, and Escherichia coli O157:H7.
DMDC acts by inactivating microbial enzymes, mainly via reactions with protein imidazole and amine groups, destroying the microorganisms. Unreacted DMDC quickly breaks down into methanol and carbon dioxide. Its activity depends on hydrolysis rate, which varies with beverage temperature. DMDC fully hydrolyzes in about four hours at 10°C (50°F) or two hours at 20°C (68°F).
Fast delivery time
Inventory: 2–3 working days; New production: 7–10 working days.
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