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DIETHYL AMINOMALONATE HCl | ||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 13433-00-6 |
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| EINECS NO. | 236-556-8 | |
| FORMULA | (H5C2OOC)2CHNH2HCl | |
| MOL WT. | 211.65 | |
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H.S. CODE |
2922.49 |
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TOXICITY |
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| SYNONYMS |
Aminomalonic acid diethyl ester HCl; |
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Diethyl aminomalonate hydrochloride; |
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE |
white crystalline needles | |
| MELTING POINT | ||
| BOILING POINT | 156 - 158 C | |
| SPECIFIC GRAVITY |
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| SOLUBILITY IN WATER | freely soluble | |
| pH | ||
| VAPOR DENSITY |
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REFRACTIVE INDEX |
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NFPA RATINGS |
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AUTOIGNITION |
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FLASH POINT |
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| STABILITY | Stable under ordinary conditions. Moisture sensitive. | |
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GENERAL DESCRIPTION & APPLICATIONS |
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| Malonic acid (also called Propanedioic Acid ) is a white crystalline C-3 dicarboxylic acid; melting at 135 -136 C; readily soluble in water, alcohol and ether; solution in water is medium-strong acidic. It can be derived by oxidizing malic acid or by the hydrolysis of cyanacetic acid. Malonic acid itself is rather unstable and has few applications. It's diethyl ester (diethyl malonate) is more important commercially. Diethyl malonate, a colourless, fragrant liquid boiling at 199 C, is prepared by the reaction of monochloroacetatic acid with methanol, carbon monoxide or by the reaction cyanoacetic acid (the half nitriled-malonic acid) with ethyl alcohol. Malonic acid and its esters contain active methylene groups which have relatively acidic alpha-protons due to H atoms adjacent to two carbonyl groups. The reactivity of its methylene group provide the sequence of reactions of alkylation, hydrolysis of the esters and decarboxylation resulting in substituted ketones. The methylene groups in 1,3-dicarboxylic acid utilize the synthesis of barbiturates; a hydrogen atom is removed by sodium ethoxide, and the derivative reacts with an alkyl halide to form a diethyl alkylmalonate. The diethyl dialkylmalonates are converted to barbiturates by reaction with urea. Malonic acid and its esters are characterized by the large number of condensation products. They are important intermediates in syntheses of vitamins B1 and B6, barbiturates, non-steroidal anti-inflammatory agents, other numerous pharmaceuticals, agrochemicals and flavors & fragrances compounds. | ||
| SALES SPECIFICATION | ||
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APPEARANCE |
white crystalline needles |
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ASSAY |
99.0% min |
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ASH |
0.1% max | |
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LOSS ON DRYING |
0.5% max | |
| TRANSPORTATION | ||
| PACKING | 25kgs
in Drum | |
| HAZARD CLASS | Not regulated | |
| UN NO. | ||
| OTHER INFORMATION | ||
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Hazard Symbols: n/a, Risk Phrases: n/a, Safety Phrases: 24/25-28A-37-45 |
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