If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
439193
Methanol
≥99.9%, gradient grade, suitable for HPLC, suitable for EPA 1613
Synonym(s):
Methyl alcohol
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
Product Name
Methanol, suitable for HPLC, gradient grade, suitable as ACS-grade LC reagent, ≥99.9%
grade
gradient grade
Quality Level
agency
suitable for EPA 1613
vapor density
1.11 (vs air)
vapor pressure
410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
assay
≥99.9%
autoignition temp.
725 °F
expl. lim.
36 %
technique(s)
HPLC: suitable
impurities
H2SO4, passes test (darkened), ≤0.0002 meq/g Titr. base, ≤0.0003 meq/g Titr. acid, ≤0.001% acetaldehyde, ≤0.001% acetone, ≤0.001% formaldehyde, ≤0.03% water
evapn. residue
≤0.0003%
color
APHA: ≤10, clear
refractive index
n20/D 1.329 (lit.)
bp
64.7 °C (lit.)
mp
−98 °C (lit.)
density
0.791 g/mL at 25 °C (lit.)
HPLC-gradient
≤5 mAU at 254 nm
λ
H2O reference
UV absorption
λ: 203 nm Amax: ≤1.0, λ: 210 nm Amax: ≤0.60, λ: 220 nm Amax: ≤0.30, λ: 230 nm Amax: ≤0.15, λ: 240 nm Amax: ≤0.05, λ: 260-400 nm Amax: ≤0.01
suitability
passes test for HPLC
application(s)
food and beverages
format
neat
SMILES string
CO
InChI
1S/CH4O/c1-2/h2H,1H3
InChI key
OKKJLVBELUTLKV-UHFFFAOYSA-N
General description
Application
- HPLC with gradient analysis
- Spectrophotometry
- Residual testing
- LC-MS applications
Used as a solvent/reagent to determine total phenols content, anti-DPPH activity and the content of antioxidants in honeybee drone blood homogenate (DBH) samples.
Packaging
Preparation Note
1 of 1
This Item | |||
|---|---|---|---|
| technique(s) HPLC: suitable | technique(s) UV/Vis spectroscopy: suitable | technique(s) - | technique(s) - |
| assay ≥99.9% | assay ≥99.9% | assay ≥99.6% | assay ≥99.8% |
| application(s) food and beverages | application(s) food and beverages | application(s) - | application(s) - |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 100, 200 |
| grade gradient grade | grade ACS spectrophotometric grade | grade Laboratory Reagent | grade ACS reagent |
| impurities H2SO4, passes test (darkened), ≤0.0003 meq/g Titr. acid, ≤0.001% acetone, ≤0.03% water, ≤0.0002 meq/g Titr. base, ≤0.001% formaldehyde, ≤0.001% acetaldehyde | impurities MnO4- reducers, passes test, ≤0.0002 meq/g Titr. base, ≤0.0003 meq/g Titr. acid, ≤0.001% acetaldehyde, ≤0.001% acetone, ≤0.001% formaldehyde, ≤0.1% water | impurities ≤0.01% alkalinity (as NH3), ≤0.03% acidity (as HCOOH), ≤0.1% water | impurities H2SO4, passes test (darkened), MnO4- reducers, passes test, ≤0.0002 meq/g Titr. base, ≤0.0003 meq/g Titr. acid, ≤0.001% acetaldehyde, ≤0.001% acetone, ≤0.001% formaldehyde, ≤0.1% water |
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Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
target_organs
Eyes,Central nervous system
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
49.5 °F - closed cup
flash_point_c
9.7 °C - closed cup
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
67-56-1
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Related Content
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 439193-4X4L | 04061837479137 |
| 439193-20L-N2 | 04061837479106 |
| 439193-4L | 04061837479120 |
| 439193-200L | 04061837287510 |
| 439193-50L-P2-4A | 04061838511966 |
| 439193-18L | 04061837479090 |
| 439193-20L | 04061832246000 |
| 439193-VS-50L-P1 | 04061841232797 |
| 439193-20L-P2-4A | 04061837287527 |
| 439193-20L-P2 | 04061837479113 |
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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