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Formaldehyde solution

stabilized with methanol, ~37 wt. % in H2O, certified reference material

Linear Formula:
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


certified reference material

vapor density

1.03 (vs air)

vapor pressure

52 mmHg ( 37 °C)


current certificate can be downloaded

autoignition temp.

572 °F


~37% water in methanol as stabilizer


pkg of 1 mL


~37 wt. % in H2O


HPLC: suitable
gas chromatography (GC): suitable


1.09 g/mL at 25 °C (lit.)


suitable for manufacturing use (Laboratory chemicals)


cleaning products
food and beverages
personal care


single component solution

storage temp.


SMILES string




InChI key


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Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Signal Word


Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids



Flash Point(F)

133.0 °F

Flash Point(C)

56.11 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. Are there any other compounds in Product No. 47083-U, Formaldehyde 37% Wt in Water, except formaldehyde and water?

    Cat# 47083-U is a saturated solution of formaldehyde, water, and typically another agent, most commonly methanol. In its typical form, formalin is 37% formaldehyde by weight, 6-13% methanol, and the remainder water.

  4. Why does Product No. 47083-U, Formaldehyde 37% Wt in Water, contain methanol?

    A small percentage of methanol is added to limit the extent of polymerization of the formaldehyde.

  5. What is the difference between formalin and formaldehyde?

    Formaldehyde is a gas that is readily soluble in water. Formalin is the common name for a solution made of 37% formaldehyde, 6-13% methanol, and water. The terms are not interchangeable.

  6. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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