Methyl carbazate is reported in EPA TSCA Inventory.

The Methyl carbazate, with the CAS registry number 6294-89-9, is also known as Methoxycarbonylhydrazine. It belongs to the product categories of Amines; Isotope Labelled Compounds. Its EINECS number is 228-560-3. This chemical's molecular formula is C₂H₆N₂O₂ and molecular weight is 90.08. What's more, its systematic name is Methyl hydrazinecarboxylate. 

Physical properties of Methyl carbazate are: (1)ACD/LogP: -0.719; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.72; (4)ACD/LogD (pH 7.4): -0.72; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 9.64; (8)ACD/KOC (pH 7.4): 9.67; (9)#H bond acceptors: 4; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 64.35 Å²; (13)Index of Refraction: 1.435; (14)Molar Refractivity: 20.22 cm³; (15)Molar Volume: 77.525 cm³; (16)Polarizability: 8.016×10^-24cm³; (17)Surface Tension: 38.8 dyne/cm; (18)Density: 1.162 g/cm³; (19)Flash Point: 86.129 °C; (20)Enthalpy of Vaporization: 46.755 kJ/mol; (21)Boiling Point: 230.906 °C at 760 mmHg; (22)Vapour Pressure: 0.06 mmHg at 25°C.

Uses of Methyl carbazate: it can be used to produce benzylidene-carbazic acid methyl ester by heating. It will need reagent acetic acid and solvent methanol with the reaction time of 30 min. The yield is about 90%.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. It it toxic by inhalation and if swallowed. It has a danger of serious damage to health by prolonged exposure. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing, gloves and eye/face protection. You should not breathe dust. In case of accident or if you feel unwell, you must seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OC)NN
(2)Std. InChI: InChI=1S/C2H6N2O2/c1-6-2(5)4-3/h3H2,1H3,(H,4,5)
(3)Std. InChIKey: WFJRIDQGVSJLLH-UHFFFAOYSA-N