Dimethyl dicarbonate CAS#4525-33-1

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)

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Dimethyl dicarbonate CAS#4525-33-1

Dimethyl dicarbonate (DMDC), also known as Viguolin, is a kind of fruit juice beverage preservative (INS No. 242) that is allowed to be used in my country's food additive use standards. Under normal or even low temperature conditions, DMDC has a strong ability to kill many contaminating bacteria in fruit juice drinks, and its antiseptic effect is closely related to the modification and inactivation of key enzyme proteins in the bacteria by DMDC. Compared with other physical sterilization technologies, the use of DMDC is low in cost, simple and safe to operate, and does not affect the taste, smell and color of the product. It has become one of the hotspots in the research of emerging non-thermal sterilization technologies.

Dimethyl dicarbonate Chemical 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	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

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 Of Dimethyl dicarbonate CAS#4525-33-1

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.

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