1.04343

Methenamine

GR for analysis Reag. Ph Eur

• Synonym(s): Methenamine, Hexamethylenetetramine, Hexamine, Formin, Urotropin
• Empirical Formula (Hill Notation): C₆H₁₂N₄
• CAS Number: 100-97-0
• Molecular Weight: 140.19
• UNSPSC Code: 12352005
• EC Index Number: 202-905-8
• NACRES: NA.21
• MDL number: MFCD00006895
• Assay: ≥99.5% (perchloric acid titration)
• Vapor pressure: <0.01 hPa ( 20 °C)

Properties

• agency: reag. Ph. Eur.
• Quality Segment: 100
• vapor pressure: <0.01 hPa ( 20 °C)
• assay: ≥99.5% (perchloric acid titration)
• form: solid
• autoignition temp.: 390 °C
• potency: 9200 mg/kg LD₅₀, oral (Rat)
• dilution: (for analytical testing)
• pH: 7-10 (20 °C, 100 g/L in H₂O)
• transition temp: flash point 250 °C
• density: 1.33 g/cm³ at 20 °C
• bulk density: 600 kg/m³
• storage temp.: 15-25°C
• SMILES string: N21CN3CN(C2)CN(C1)C3
• InChI: 1S/C6H12N4/c1-7-2-9-4-8(1)5-10(3-7)6-9/h1-6H2
• InChI key: VKYKSIONXSXAKP-UHFFFAOYSA-N

Description

Application

• New phosphotetradecavanadate hybrids: crystal structure, DFT analysis, stability and binding interactions with bio-macromolecules.: This article discusses the synthesis and structural analysis of new hybrids involving methenamine, offering potential applications in catalysis and material science (Pessoa JC, 2022).

Analysis Note

Assay (perchloric acid titration): ≥ 99.5 %
Identity (IR-spectrum): passes test
Appearance: colorless or white to almost white crystalline powder
pH (100 g/l, water): 7.0 - 10.0
Chloride (Cl): ≤ 20 ppm
Sulphate (SO₄): ≤ 50 ppm
Heavy metals (as Pb): ≤ 10 ppm
NH₄ (Ammonium): ≤ 100 ppm
Sulfated ash (800 °C): ≤ 0.05 %

Safety Information

• pictograms: GHS02,GHS07
• signalword: Warning
• hcodes: H228 - H317
• pcodes: P210 - P240 - P241 - P261 - P280 - P302 + P352
• Hazard Classifications: Flam. Sol. 2 - Skin Sens. 1B
• Storage Class: 4.1B - Flammable solid hazardous materials
• wgk: WGK 1
• flash_point_f: 482.0 °F - closed cup
• flash_point_c: 250 °C - closed cup