dimethyl dicarbonate , Used for albumin methylation , 4525-33-1
Synonym(s):
Dimethyl dicarbonate;Dimethyl pyrocarbonate, Pyrocarbonic acid dimethyl ester
CAS NO.：4525-33-1
Empirical Formula: C4H6O5
Molecular Weight: 134.09
MDL number: MFCD00008419
EINECS: 224-859-8
| Pack Size | Price | Stock | Quantity |
| 5ml | RMB135.20 | In Stock |
|
| 25ML | RMB420.00 | In Stock |
|
| 100ML | RMB783.20 | In Stock |
|
| 500ml | RMB3199.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 15-17°C |
| Boiling point: | 45-46 °C5 mm Hg(lit.) |
| Density | 1.25 g/mL at 25 °C(lit.) |
| vapor pressure | 0.7 hPa (20 °C) |
| refractive index | n |
| Flash point: | 80 °C |
| storage temp. | Store below +30°C. |
| solubility | 35g/l (decomposition) |
| form | Oil |
| color | Colourless |
| explosive limit | 3-29.9%(V) |
| BRN | 956715 |
| Stability: | Moisture Sensitive |
| LogP | 0.082 (est) |
| EPA Substance Registry System | Dicarbonic acid, dimethyl ester (4525-33-1) |
Description and Uses
Dimethyl Dicarbonate(DMDC) is a microbial control agent used in wine; ready-to-drink teas; nonjuice-containing beverages; carbonated,dilute beverages containing juice, fruit flavor or both with the juice content not exceeding 50%.
Dimethyl Dicarbonate has been commonly used as a antimicrobial agent for a broad spectrum of microorganisms. The primary target microorganisms of DMDC are yeasts, including Saccharomyces, Zygosaccharomyces, Rhodotorula, Candida, Pichia, Torulopsis, Torula, Endomyces, Kloeckera and Hansenula. DMDC is also bactericidal to a number of species including Acetobacter pasteurianus, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, several Lactobacillus species and Pediococcus cerevisiae DMDC has also been shown to be bactericidal against Escherichia coli O157:H7.
The antimicrobial effect of DMDC results from the deactivation of microbial enzymes, mainly through reaction with protein imidazole and amine groups, leading to the destruction of the microorganisms. The remaining unreacted DMDC breaks down rapidly into methanol and carbon dioxide. The DMDC activity is based on the hydrolysis rate. Hydrolysis occurs when DMDC reacts with water and the rate is dependent on the temperature of the beverage or wine. It takes about four hours at 10°C (50°F) or two hours at 20°C (68°F) for DMDC completely breaking down.
Safety
| Symbol(GHS) |   GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H302-H314-H330 |
| Precautionary statements | P260-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| 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 |
| HS Code | 2920 90 10 |
| HazardClass | 6.1(a) |
| PackingGroup | II |
| Hazardous Substances Data | 4525-33-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 335 mg/kg LD50 dermal Rat > 1250 mg/kg |
