915 Results for: "MERCK PRODUCTION CHEMICALS"

Potassium hydroxide ≥85.0% (by acidimetry), pellets, EMPROVE® ESSENTIAL NF, JP, E525, Ph. Eur., BP, FCC, extra pure suitable for use as excipient, SAFC®

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Poloxamer 188 stabilised, EMPROVE® EXPERT Ph. Eur., NF

Supplier: MERCK PRODUCTION CHEMICALS

Poloxamer 188 stabilised, EMPROVE® EXPERT Ph. Eur., NF

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L(+)-Histidine monohydrochloride monohydrate 98.5-101.0% (dried basis), EMPROVE® EXPERT Ph. Eur., BP, JP suitable for use as excipient, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

L(+)-Histidine monohydrochloride monohydrate 98.5-101.0% (dried basis), EMPROVE® EXPERT BP, Ph. Eur., JP, extra pure suitable for use as excipient, SAFC®

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Aluminium potassium sulphate dodecahydrate 99.0-100.5% (by complexometric analysis, on dry substance), EMPROVE® ESSENTIAL Ph. Eur., BP, USP, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

Aluminium potassium sulphate dodecahydrate 99.0-100.5% (by complexometric analysis, on dry substance), EMPROVE® ESSENTIAL Ph. Eur., BP, USP, SAFC®

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di-Potassium hydrogen phosphate, anhydrous ≥98.0%, EMPROVE® ESSENTIAL Ph. Eur., BP, E340, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

di-Potassium hydrogen phosphate, anhydrous ≥98.0%, EMPROVE® ESSENTIAL Ph. Eur., BP, E340, SAFC®

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Gum arabic, spray-dried, EMPROVE® ESSENTIAL Ph. Eur., BP, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

Gum arabic, spray-dried, EMPROVE® ESSENTIAL Ph. Eur., BP, SAFC®

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Silica gel, Pore size: 60 Å (0.040-0.063 mm) for column chromatography (230-400 mesh ASTM), Millipore®

Supplier: MERCK PRODUCTION CHEMICALS

Silica gel, Pore size: 60 Å (0.040-0.063 mm) for column chromatography (230-400 mesh ASTM), Millipore®

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all-rac-α-Tocopherol 96.0-102.0%, EMPROVE® ESSENTIAL Ph. Eur., BP, USP, E307, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

Corresponds to Ph. Eur., BP, USP, E 307
Conforms to the purity criteria on food additives according to the current European Commission Regulation.
# specified acc. to EMEA/CHMP/SWP/4446/2000 (Specification limits for residues of metal catalysts or metal reagents).
Other residues of metal catalysts or metal reagents acc. to this guideline are not likely to be present.

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Florisil® for preparative chromatography

Supplier: MERCK PRODUCTION CHEMICALS

Composed of magnesium and silicon oxides in the approximate ratio of 85:15. This is a polar phase used for the chromatography of compounds such as steroids and alkaloids. This activity can be controlled by the activation temperature used.

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Sodium metabisulphite ≥97.0-100.0% (by iodometry), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF, E223, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

Sodium metabisulphite ≥97.0-100.0% (by iodometry), EMPROVE® ESSENTIAL NF, JP, Ph. Eur., BP, E223, extra pure suitable for use as excipient, SAFC®

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tri-Sodium citrate dihydrate ≥99.0%, crystals, EMPROVE® ESSENTIAL Ph. Eur., BP, JP, USP, E331, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

tri-Sodium citrate dihydrate ≥99.0%, crystals, EMPROVE® ESSENTIAL Ph. Eur., JP, USP, E331, BP suitable for use as excipient, SAFC®

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1,1,1-Trichloro-2-methyl-2-propanol hemihydrate Ph. Eur., BP, JP, NF, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

1,1,1-Trichloro-2-methyl-2-propanol hemihydrate BP, Ph. Eur., JP, NF, SAFC®

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Ammonium sulphate, SAFC®

Supplier: MERCK PRODUCTION CHEMICALS

Ammonium sulphate, SAFC®

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Cellulose for preparative chromatography

Supplier: MERCK PRODUCTION CHEMICALS

Micro-crystalline cellulose is a hydrophilic polysaccharide packing material preferred for the raw separation of amino acids and related compounds. Cellulose is also used for the gentle purification of bio-molecules. Because of the organic nature of cellulose, it can only be used in pre-swollen state and under gentle or hydrostatic pressure.