Chemicals and reagents

1-Propanol for liquid chromatography, 361885

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Minimum assay (G.C.): 99.8%
Density 20/4: 0.803-0.805
Maximum limit of impurities
APHA colour: 10
Acidity: 0.0002 meq/g
Alkalinity: 0.0002 meq/g
Non-volatile matter: 0.0002 %
Water (H2O): 0.1 %
Suitability for IR spectrometry:: passes test
UV Spectrum (1cm cell; Ref.: water):
Transmittance at 208 (Cut off) nm: ≥10%
Transmittance at 210 nm: ≥15%
Transmittance at 230 nm: ≥70%
Transmittance at 240 nm: ≥80%
Transmittance at 250 nm: ≥94%
Transmittance at 260-400 nm: ≥98%
Data of interest in HPLC:
Rohrschneider Polarity: 4.0
Eluotropic value E° (Al2O3): 0.82
Sol. H2O in solv. at 20°C: miscible
For critical jobs, purge with nitrogen.
Microfiltered product (0.2 μm) and bottled under nitrogen atmosphere.

1-bromonaphthalene for synthesis 15A630

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Panreac 15A630

Minimum assay (G.C.): 96%
Identity: IR passes test
Density 20/4: 1.483-1.486

1-butanol С076

Europe

Main substance mine: 99%
Boiling point: 116-118°C
Water: 0.2%
Solubility: 66 g/l
2-Butanol: 0.07%
Dibutyl ether: 0.1%

Different packaging sizes

1-butanol (reag. Ph. Eur.) For analysis, ACS, ISO 131082

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Panreac 131082

Minimum assay (G.C.): 99.5%
Identity: IR passes test
Density 20/4: 0.808-0.810
Range of Boiling: 116-119°C
Maximum limit of impurities
APHA colour: 10
Acidity: 0.0008 meq/g
Alkalinity: 0.0005 meq/g
Insoluble matter in H2O: passes test
Non-volatile matter: 0.001 %
Darkened substances by H2SO4: passes test
Carbonyl compounds (as C3H7CHO): 0.01%
Acetone (G.C.): 0.01%
2-Butanol (G.C.): 0.05%
Butanal (G.C.): 0.01%
di-n-Butyl Ether (G.C.): 0.1%
Isobutanol (G.C.): 0.15%
Water (H2O): 0.1 %

1-butanol for UV, IR, HPLC 361082

itwreagents

Content (G.C.): 99.9%
Density 20/4: 0.808-0.810
Maximum impurity limit
APHA color: 10
Acidity: 0.0002 meq/g
Alkalinity: 0.0002 meq/g
Non-volatile matter: 0.0003 %
Water (H2O): 0.03%
Suitability for IR spectrometry:: passes the test
UV spectrum (1cm cell; Ref.: water):
Transmittance at 207 (cutoff) nm: ≥10%
Transmittance at 210 nm: ≥25%
Transmittance at 220 nm: ≥50%
Transmittance at 230 nm: ≥75%
Transmittance at 240 nm: ≥85%
Transmittance at 250 nm: ≥94%
Transmittance at 270-450 nm: ≥98%
Data of interest for HPLC:
P' + 0.25 E: 8.3
Rohrschneider Polarity: 3.9
Eluotropic value E° (Al2O3): 0.7
Sol. H2O in solution. at 20°C: 20.1
For critical tasks, purge with nitrogen.
Microfiltered product (0.2 μm) and bottled under nitrogen atmosphere.

1H-indole-3-butyric acid, 99% for synthesis 155494

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Panreac 155494

Assay: 99%
Identity: IR passes test

2,2-Bipyridine 132371

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Minimum assay (Perchl. Ac.): 99,9 %
Melting range: 69,98-71,78°C
Insoluble matter in HCl: p/t
Chloride (Cl): <0,001 %
Sulphate (SO4): <0,01 %
Cu: <0,001 %
Fe: <0,001 %
Pb: <0,001 %

2,6-Dichlorophenol Indophenol Sodium Salt 2-hydrate (Reag. Ph. Eur.) for analysis, ACS, packaging size 5 g 132056

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Identity: IR passes test
Maximum limit of impurities
Loss on drying at 120°C: 12.0%
Foreign dyes: passes test

2-Butanol (Reag. Ph. Eur.) for analysis 131089

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Panreac 123851

2-Methyl-2,4-pentanediol (USP-NF) pure, pharma grade 141348

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Assay (G.C.): 98.0 - 102.0 %
Identity according to Pharmacopoeias:: passes test
Density 25/25: 0.917-0.923
Refractive Index n 25/D: 1.424-1.430
Maximum limit of impurities
Acidity (as CH3COOH): 0.013%
Residual solvents (Ph.Eur/USP): passes test
Organic impurities (G.C.):
Acetone: 0.1 %
2-Propanol: 0.1 %
Diacetone Alcohol: 0.1 %
4-Methyl-2-Pentanone: 0.1 %
4-Methyl-2-Pentanol: 0.1 %
Any other unspecified impurity: 0.1 %
Total: 1.0 %
Water (H2O): 0.5 %

Medical consumables