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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:
100-97-0
Molecular Weight:
140.19
Beilstein:
2018
EC Number:
202-905-8
MDL number:
MFCD00006895
UNSPSC Code:
12352116
PubChem Substance ID:
57647507
NACRES:
NA.21

vapor pressure

<0.01 mmHg ( 20 °C)

Quality Level

200

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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Related Categories

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H228,H317

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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Certificates of Analysis (COA)

Lot/Batch Number
STBK6397
STBK3511
STBJ9917
STBJ6154
STBJ4184

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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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A green, one-step method for synthesis of graphene-Au nanoparticles (graphene-AuNPs) was introduced in this article, using an environmentally benign hexamethylenetetramine (HMTA) as reducing and stabilizing agent. HMTA slowly was hydrolyzed to generate aldehyde ammonia to reduce graphene oxides (GO) and
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Relatively little is known about the epidemiology of allergic contact dermatitis in older individuals. We sought to determine the frequency of positive and clinically relevant patch test reactions in older individuals (≥ 65 years old) referred for patch testing, and
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