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15614

Sigma-Aldrich

Hexamethylenetetramine

meets analytical specification of Ph. Eur., BP, 99-100.5% (calc. to the dried substance)

Synonym(s):

1,3,5,7-Tetraazatricyclo[3.3.1.13,7]decane, Hexamine, Methenamine, Urotropine

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About This Item

Empirical Formula (Hill Notation):
C6H12N4
CAS Number:
Molecular Weight:
140.19
Beilstein:
2018
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

<0.01 mmHg ( 20 °C)

Quality Level

Assay

99-100.5% (calc. to the dried substance)

form

solid

autoignition temp.

770 °F

quality

meets analytical specification of Ph. Eur., BP

impurities

acidic and alkalic reac. substances, complies
residual solvents, in accordance
≤0.002% heavy metals (as Pb)
≤0.005% free formaldehyde

loss

≤2% loss on drying

mp

280 °C (subl.) (lit.)

solubility

H2O: soluble

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

suitability

complies for appearance of solution

application(s)

pharmaceutical (small molecule)

SMILES string

C1N2CN3CN1CN(C2)C3

InChI

1S/C6H12N4/c1-7-2-9-4-8(1)5-10(3-7)6-9/h1-6H2

InChI key

VKYKSIONXSXAKP-UHFFFAOYSA-N

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Pictograms

FlameExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Flam. Sol. 2 - Skin Sens. 1B

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 1

Flash Point(F)

482.0 °F - closed cup

Flash Point(C)

250 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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The currently used patch test concentration for formaldehyde is 1.0% (wt/vol) in water. However, clinical experience and previous studies suggest that 1.0% might be insufficient for detecting an optimized number of clinically relevant cases of contact allergy to formaldehyde. To

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