Compound: 765-70-8
SMILES: O=C1C(=O)CCC1C
InChIKey: OACYKCIZDVVNJL-UHFFFAOYSA-N
Synonyms: 765-70-8, 3-Methyl-1,2-cyclopentanedione, 1,2-CYCLOPENTANEDIONE, 3-METHYL-, DTXSID3047716, DTXCID2027709, RefChem:503360, Methylcyclopentenolone (diketo, 2-hydroxy-3-methylcyclopent-2-en-1-one; 3-methylcyclopentane-1,2-dione, 212-154-8, 3-Methylcyclopentane-1,2-dione, Methylcyclopentenolone (diketo form), MFCD00001417, Methylcyclopentenolone (natural), EINECS 212-154-8, methyl-cyclopentenolone, 2-Hydroxy-5-methyl-2-cyclopenten-1-one, SCHEMBL511158, CHEMBL371371, orb3023382, orb3026022, SCHEMBL7933509, 3-Methyl-1.2-cyclopentanedione, BDBM22767, FEMA 2700, CHEBI:173373, STR04813, Tox21_302629, EBC-06132, STK801987, AKOS000119750, AKOS016843942, CS-W011271, 3-Methyl-1,2-cyclopentanedione, 98%, 3-Methyl-1,2-cyclopentanedione, 99%, NCGC00256786-01, CAS-765-70-8, SY010560, DB-003407, M2904, NS00020028, NS00093489, E75724, F791097
Theoretical properties:
molecular_formula: C6H8O2
molecular_weight: 112.13 g/mol
exact_mass: 112.052429494 g/mol
formal_charge: 0
hydrogen_bond_donor_count: 0
hydrogen_bond_acceptor_count: 2
rotatable_bond_count: 0
heavy_atom_count: 8
topological_polar_surface_area: 34.1 Å²
isotope_atom_count: 0
covalently_bonded_unit_count: 1
Physical properties:
melting_point: 106.5 - 107 °C
Descriptions:
{"pubchem": "3-Methyl-1,2-cyclopentanedione is a cyclic ketone.", "chebi": null, "chembl": "Unnamed Compound is a small molecule listed in the ChEMBL database but has not progressed to an approved clinical phase.", "wikipedia": "The following movies were filmed using 65mm or 70mm negative stock. Titles are followed by the photographic process(es) employed.\nReleases produced in Todd-AO, Todd-70, Super Panavision 70 (also known as Panavision 70), Panavision System 65 (also known as Panavision Super 70), Dimension 150, Arri 765 and Superpanorama 70 (also known as MClS 70 and MCS Superpanorama 70) were photographed with spherical optics on 65 mm film with five perforations per frame, yielding an aspect ratio of 2.20:1.\nSovscope 70 and DEFA 70 releases were identical with the exception that they were photographed on 70 mm negative stock.\nMGM Camera 65 (later renamed to Ultra Panavision 70) releases employed the same film format, but the use of 1.25X anamorphic optics yielded a super-wide aspect ratio of approximately 2.75:1.\n70 mm Cinerama releases were projected with special optics onto a deeply curved screen in an attempt to mimic the effect of the original 3-strip Cinerama process.\nHi Fi Stereo 70 (also known as Triarama and Stereovision 70) was a 3-D process. Two anamorphic images, one for each eye, were captured side by side on 65 mm film. A special lens on a 70 mm projector added polarization and merged the two images on the screen.  A similar Soviet system known as Stereo 70 did not employ anamorphics, resulting in an aspect ratio of 1.37:1.\nStereospace 2000 (a 3D process) and Kodak-Disney 3D used dual 65 mm cameras operating at 30fps.\nStandard 70 mm theater prints were 70 mm wide, with the extra space used to accommodate the 6-channel magnetic soundtracks, consisting of five full-range channels (left, left-center, center, right-center and right) arrayed behind the screen, with the sixth channel providing surround effects.\nFar and Away (1992), Baraka (1992) and Hamlet (1996) employed a modified arrangement of speakers, with left, centre and right channels behind the screen, left and right surround channels and a low-frequency effects channel. More recent 70 mm releases (including The Hateful Eight) have used standard 5.1 DTS sound.\nThis list does not include any of the hundreds of 35 mm films which have been optically enlarged to 70 mm for deluxe exhibition, including such titles as Star Wars, Raiders of the Lost Ark, and Ghostbusters.\nAlso not included are 70 mm releases which originated on horizontal 35 mm negative such as Vistavision and Technirama (see List of Technirama films), nor films made in the Showscan process. For films shot in the IMAX 70mm format, see List of IMAX films.\n\n"}