Merck
CN
All Photos(1)

Documents

Safety Information

1.04343

Supelco

Methenamine

GR for analysis Reag. Ph Eur

Sign Into View Organizational & Contract Pricing

Synonym(s):
Methenamine, Hexamethylenetetramine, Hexamine, Formin, Urotropin
Empirical Formula (Hill Notation):
C6H12N4
CAS Number:
Molecular Weight:
140.19
MDL number:
EC Index Number:
202-905-8

Agency

reag. Ph. Eur.

Quality Level

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)

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

InChI

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

InChI key

VKYKSIONXSXAKP-UHFFFAOYSA-N

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 %

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

Regulatory Information

监管及禁止进口产品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service