201599-12-4

Basic information

• Product Name: Pyrazolo[1,5-a]pyrimidine-3,7-diamine (9CI)
• Synonyms: Pyrazolo[1,5-a]pyrimidine-3,7-diamine (9CI)
• CAS NO: 201599-12-4
• Molecular Formula: C6H7N5
• Molecular Weight: 149.15328
• Product Categories: AMINEPRIMARY
• Mol File: 201599-12-4.mol

Chemical Properties

• Appearance: /
• Density: 1.73±0.1 g/cm3(Predicted)
• PKA: 4.79±0.40(Predicted)
• CAS DataBase Reference: Pyrazolo[1,5-a]pyrimidine-3,7-diamine (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrazolo[1,5-a]pyrimidine-3,7-diamine (9CI)(201599-12-4)
• EPA Substance Registry System: Pyrazolo[1,5-a]pyrimidine-3,7-diamine (9CI)(201599-12-4)

Safety Data

• Hazardous Substances Data: 201599-12-4(Hazardous Substances Data)

Relevant articles and documents

SUBSTANCES FOR DYEING KERATINOUS FIBERS

Disclosed are substances which contain unsaturated, non-aromatic dialdehydes of formula (Ia) and/or the tautomer (Ib) thereof, wherein R1, R2, and R3 are defined as indicated in claim 1, along with at least one CH-acidic compound of formulas (II) and/or (III), wherein R6, R7, R8, R9, R10, Y, X?, Het, and X1 are defined as indicated in claim 1, in a cosmetic carrier. Said substances color keratinous fibers, especially human hair, in an intensive, colorfast, natural brown shade.

Hairdye composition

A hairdye composition, characterized in that, indoline and/or indoline compound and laccase are compounded.

Compositions for dyeing keratinous fiber

A composition for dyeing keratinous fiber which includes incorporated therein an oxidative color-developing substance, an enzyme which reacts with oxygen as a substrate but does not evolve hydrogen peroxide, and a weak reducing agent.

Mixture for the oxidation tinting of keratin fibers containing a laccase and tinting method using said mixture

The invention relates to a cosmetic mixture for the oxidation tinting of keratin fibers, especially human hair, comprising in a support material suitable for tinting keratin fibers (a) at least one laccase-type enzyme; (b) at least one particular conditioning agent for keratin fibers which is insoluble in aqueous media; and (c) at least one oxidation colorant. The invention also relates to the tinting methods using the above mixture.

Method for treating hair

A method for treating hair, combining permanent dyeing and straightening of hair, without significantly damaging the hair. According to the method of the present invention the hair is treated by chemically reducing covalent disulfide linkages in the hair, and contacting said hair with at least one oxidoreductase, at least one mediator, and at least one chemical oxidizing agent in an amount equivalent to 0.001-1% hydrogen peroxide calculated by weight of the dyeing formulation.

Mixture for the oxidation tinting of keratin fibres containing a laccase and tinting method using said mixture

The invention relates to a ready-to-use mixture for tinting keratin fibres, especially human keratin fibres such as hair, comprising in a support material suitable for tinting keratin fibres (a) at least one laccase-type enzyme; (b) at least one solvent selected from among certain polyols and their ethers or polyethers; and (c) at least one oxidation colorant. The invention also relates to the hair tinting method using said mixture.

Keratinous fibre oxidation dyeing compositions containing a laccase and dyeing method using same

The invention concerns a ready-to-use oxidation composition for dyeing keratinous fibres, in particular human keratinous fibres such as hair comprising, in a medium suitable for dyeing, at least one oxidation colouring agent, at least an acid direct colouring agent comprising in its structure at least a sulphonic function or at least a carboxylic function, and at least an enzyme such as laccase, as well as the dyeing method using said composition.

Mixture for the oxidation tinting of keratin fibres containing a laccase and tinting method using said mixture

The invention relates to a cosmetic mixture for the oxidation tinting of keratin fibres, containing in a support material suitable for tinting keratin fibres (a) at least one laccase-type enzyme; (b) at least one polymer thickener selected from the group constituted by: (i) amphiphilic non-ionic polymers comprising at least one fatty chain and at least one hydrophilic unit; (ii) anionic amphiphilic polymers comprising at least one hydrophilic unit and at least one fatty chain unit; (iii) cross-linked acrylic acid homopolymers; (iv) cross-linked 2-acrylamide-2-methyl-propane sulfonic acid homopolymers and their cross-linked acrylamide copolymers, which are partially or fully neutralized; (v) ammonium acrylate homopolymers or ammonium acrylate and acrylamide copolymers; (vi) dimethylaminoethyl-methacrylate homopolymers quatemized by methyl chloride or dimethylaminoethyl-methacrylate copolymers quaternized by methyl chloride and acrylamide copolymers; (vii) non-ionic guar gums; (viii) scleroglucan gum (a biopolysaccharide of microbial origin): (ix) gums made of vegetable exudates such as gum arabic, gum ghatti, gum karaya and gum tragacanth; and (c) at least one oxidation tint. The invention also relates to the tinting methods making use of the above mixture.

Method for dyeing dry hair

The present invention relates to methods for dyeing keratinous fibers, without significantly damaging the hair. According to the method of the present invention the fibers are treated in a dry state by contacting said fibers with at least one oxidoreductase and at least one dye precursor. In this way it is possible to dye, e.g. human hair, in a simple and efficient manner.

COMPOSITION FOR THE OXIDATION DYEING OF KERATIN FIBRES AND DYEING PROCESS USING THIS COMPOSITION

The invention relates to a ready-to-use composition for the-oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one first oxidation base chosen from para-phenylenediamine derivatives, double bases, ortho-aminophenols and heterocyclic bases, at least one second oxidation base chosen from para-aminophenols, at least one meta-aminophenol as coupler and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.