NAD: Toxicity data for this compound are not yet available. Handle with care.
EYES - Code 2; SKIN - Code 12; INHALED - Code 15; INGESTED - Code 17
NAIL VARNISH: is a resin dissolved in acetone. The effects are as for acetone. (Acetone is a highly flammable substance. The vapour is heavier than air and can travel along the ground for a considerable distance to a source of ignition and flash back. Handle beneath a spark-proofed fume hood. Acetone is a mild eye, skin and mucous membrane irritant and a central nervous system depressant. Persons with chronic respiratory or skin diseases are at an increased risk. Alcohol consumption will enhance the toxic effects of acetone).
EYES - Code 3; SKIN - Code 12; INHALED - Code 15; INGESTED - Code 23
NAPHTHOL: is a toxic substance that can be absorbed through skin in doses sufficient to cause kidney and eye damage. Eye contact will cause conjunctivitis, ulceration and possible corneal damage. Inhalation and ingestion may cause eye damage, nephritis, abdominal pain, shortness of breath, delirium, vomiting, diarrhoea, circulatory collapse, anaemia, convulsions and death.
EYES - Code 3: SKIN - Code 12: INHALED - Code 16: INGESTED - Code 17
NAPHTHOL AS-D CHLOROACETATE: is a potential carcinogen and should not be handled during pregnancy. It is an eye, skin and respiratory tract irritant and is moderately toxic.
EYES - Code 3; SKIN - Code 9; INHALED - Code 14; INGESTED - Code 20
NAPHTHOL AS-BI-b-D-GLUCOSAMINIDE: Toxicity data for this compound are not yet available. Handle with care.
EYES - Code 2; SKIN - Code 12; INHALED - Code 15; INGESTED - Code 17
NAPHTHOL AS-BI PHOSPHATE: is a potential carcinogen and should not be handled during pregnancy. It is an eye, skin and respiratory tract irritant and is moderately toxic.
EYES - Code 3; SKIN - Code 9; INHALED - Code 14; INGESTED - Code 20
NAPHTHOL AS-M PHOSPHATE: is a potential carcinogen and should not be handled during pregnancy. It is an eye, skin and respiratory tract irritant and is moderately toxic.
EYES - Code 3; SKIN - Code 9; INHALED - Code 14; INGESTED - Code 20
NAPHTHOL AS-TR PHOSPHATE: is a potential carcinogen and should not be handled during pregnancy. It is an eye, skin and respiratory tract irritant and is moderately toxic.
EYES - Code 3; SKIN - Code 9; INHALED - Code 14; INGESTED - Code 20
1,2-NAPHTHOQUINONE 4-SULPHONIC ACID: will cause severe burns to eyes and skin. It can be absorbed through the skin in quantities sufficient to cause toxicity and may also produce allergic responses. It is irritating to the respiratory tract and toxic by ingestion.
EYES - Code 3; SKIN - Code 6; INHALED - Code 14; INGESTED - Code 17
α
NAPHTHYL ACETATE: is an eye, skin and respiratory tract irritant and toxic by ingestion.α
NAPHTHYL-a-MANNOSIDE: Toxicity data for this compound are not yet available. Handle with care.a-NAPHTHYLAMINE: It must be assumed that the naphthylamine will contain quantities of the carcinogenic ß-isomer. Take care when handling the solid amine or the liquid solution. This is a diazonium dye and dyes in this group are known to be highly toxic and carcinogenic.
EYES - Code 3; SKIN - Code 12; INHALED - Code 16; INGESTED - Code 21
NEURAMINIDASE: is an enzyme which digests terminal sialic acids. It will cause irritation to the eyes and skin. Commercial compounds may not have been checked for virus and bacterial contamination.
EYES - Code 3; SKIN - Code 9; INHALED - Code 14; INGESTED - Code 22
NEUTRAL RED: is an azin dye. It is a combustible powder and should never be handled close to heat or naked flame. It is an eye and skin irritant and may cause dermatitis. It is a toxic substance.
EYES - Code 3; SKIN - Code 6; INHALED - Code 16; INGESTED - Code 21
NEW FUCHSIN: is an aminotriarylmethane dye. It is a combustible powder and should never be handled close to heat or naked flame. It is an eye irritant. Its toxicity has not been quantified but other dyes in this group are very toxic and potential carcinogens. Handle with care.
EYES - Code 3; SKIN - Code 12; INHALED - Code 16; INGESTED - Code 21
NICKEL AMMONIUM SULPHATE: Nickel salts are possible carcinogens. There are insufficient data available for this substance so handle with care.
EYES - Code 2: SKIN - Code 12: INHALED - Code 15: INGESTION - Code 17
NICKEL SULPHATE: is a possible carcinogen. It is an eye, skin and respiratory tract irritant. Dermatitis and allergic reactions have been reported. Ingestion may cause nausea, vomiting and diarrhoea.
EYES - Code 2: SKIN - Code 12: INHALED - Code 14: INGESTED - Code 20
NILE BLUE A (Nile blue A oxazone): Little is known about the toxicity of this dye but other dyes in the same group (quinone-imine) are known to be toxic and carcinogenic. Handle with care. The chemical structure suggests that the powder is an eye and respiratory tract irritant.
EYES - Code 3; SKIN - Code 12; INHALED - Code 14; INGESTED - Code 20
NILE BLUE SULPHATE:Little is known about the toxicity of this dye but other dyes in the same group (quinone-imine) are known to be toxic and carcinogenic. Handle with care. The chemical structure suggests that the powder is an eye and respiratory tract irritant.
EYES - Code 3; SKIN - Code 12; INHALED - Code 14; INGESTED - Code 20
NILE RED (Nile blue A oxazone):Little is known about the toxicity of this dye but other dyes in the same group (quinone-imine) are known to be toxic and carcinogenic. Handle with care. The chemical structure suggests that the powder is an eye and respiratory tract irritant.
EYES - Code 3; SKIN - Code 12; INHALED - Code 14; INGESTED - Code 20