Abstract: A method of stabilizing organic substrate materials against the action of light is disclosed wherein at least one compound represented by the following general formula (I) is made to coexist with the organic substrate material ##STR1## wherein M represents a Cu, Co, Ni, Pd or Pt atom, R.sup.1 represents an alkyl or an aryl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group or an aryl group. Alternatively, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4 or R.sup.4 and R.sup.5 may combine together to form a 6-membered ring. A photographic material containing the above compound is also disclosed.

Abstract: A color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing 2,5-bis(1',1'-dimethylbutyl)hydroquinone or a precursor thereof and a 3-anilino-5-pyrazolone type magenta coupler represented by the following general formula (II): ##STR1## wherein IR represents RCONH--, RNHCO--, ROCO--, RNHSO.sub.2 --, ROSO.sub.2 NH-- ##STR2## wherein R represents a hydrogen atom, an alkyl group having 1 to 35 carbon atoms, an alkenyl group or an aralkyl group, which groups can be further substituted.The color photographic light-sensitive material can provide color images having excellent fastness and free from discoloration at the non-image areas.

Abstract: Organic substrates, especially photographic dyes, are stabilized against light by using a Cu, Co, Ni, Pd or Pt complex of formula (I). ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; R.sub.1 and R.sub.6 may be the same or different and represent a hydrogen atom or an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group or an arylsulfonyl group; and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 which may be the same or different represent a hydrogen atom, a halogen atom, a cyano group, or an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group bonded to a carbon atom on a benzene ring directly or through a divalent linking group, or R.sub.2 and R.sub.3, R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 respectively may combine and represent the non-metallic atomic groupings required to form a 6-membered ring.

Abstract: The stability of organic substrate materials having an absorption peak between 300 and 800 nm in wavelength can be improved by the presence of a compound represented by the following general formula (I), ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt atom; Cat represents a divalent cation or two monovalent cations; X represents S or a ##STR2## group where R.sup.1 and R.sup.2 each represents a CN, a COR.sup.3, a COOR.sup.4, a CONR.sup.5 R.sup.6, or a SO.sub.2 R.sup.7 group and R.sup.1 may combine with R.sup.2 to form a 5- or 6-membered ring; R.sup.3, R.sup.4 and R.sup.7 each represents an alkyl or an aryl group, R.sup.5 and R.sup.6 each represents a hydrogen atom, an alkyl or an aryl group, and n represents an integer of 1 or 2.

Abstract: A silver halide color photographic material comprising a coupler represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 individually represent a substituted or unsubstituted alkyl, alkenyl, aryl, cycloalkyl group, or,-A-X).sub.n ].sub.m Cp in which Cp represents a cyan coupler, magenta coupler or yellow coupler, A represents a substituted or unsubstituted divalent aliphatic group, X represents a divalent group, and m and n individually represent a value of 0 or 1, provided that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is -A-X).sub.n ].sub.m Cp.

Abstract: The stability of organic substrates having an absorption maximum between 300 and 800 nm in wavelength can be improved by at least one compound represented by the formula (I); ##STR1## wherein M represents Cu, Co, Ni, Pd or Pt; X.sub.1, X.sub.2, X.sub.3 and X.sub.4 eachrepresents an oxygen or sulfur atom, R.sub.1 and R.sub.2 each represents an alkyl, an aryl, a cycloalkyl, an oxocyclalkyl or a heterocyclic group attached to the carbon atom on the chelate ring directly or through a divalent connecting group, R.sub.3 represents a hydrogen atom, an alkyl, an aryl, a cycloalkyl, an oxocycloalkyl or a heterocyclic group attached to the carbon atom on the chelate ring directly or through a connecting group whereby R.sub.1, R.sub.2 and R.sub.3 may be the same or different and R.sub.1 and R.sub.3 or R.sub.2 and R.sub.3 may combine with each other to form a 5-, 6- or 7- member ring structure.

Abstract: Certain phenolic compounds have been found to enhance the contrast of dispersed coupler color photographic elements when the coupler is a 1-phenyl-3-anilino-5-pyrazolone magenta coupler.

Abstract: A color photographic light-sensitive element comprising a support having thereon a silver halide emulsion layer containing therein a 3-anilino-5-pyrazolone magenta color-forming coupler represented by the following general formula (I): ##STR1## wherein R represents an aliphatic hydrocarbon group having up to about 35 carbon atoms, a heterocyclic group having up to about 22 carbon atoms or an aromatic group having up to about 22 carbon atoms; X represents a halogen atom or an alkoxy group having up to about 22 carbon atoms; Z represents a hydrogen atom or a coupling off group; and Y.sub.1, Y.sub.2, Y.sub.3, Y.sub.4 and Y.sub.