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
R7500
D-(−)-Ribose
≥99% (GC)
Synonym(s):
Aldehydo-D-ribose
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$27.60
$63.70
$195.00
About This Item
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Product Name
D-(−)-Ribose, ≥99% (GC)
InChI key
PYMYPHUHKUWMLA-LMVFSUKVSA-N
InChI
1S/C5H10O5/c6-1-3(8)5(10)4(9)2-7/h1,3-5,7-10H,2H2/t3-,4+,5-/m0/s1
SMILES string
OC[C@@H](O)[C@@H](O)[C@@H](O)C([H])=O
biological source
microbial (fermentation)
assay
≥99% (GC)
form
powder
optical activity
[α]20/D -21.0 to -19.5 °, c = 4% (w/v) in water
technique(s)
gas chromatography (GC): suitable
impurities
≤10 ppm Heavy metals (lead)
color
white
mp
88-92 °C (lit.)
solubility
water: 100 mg/mL, clear, colorless to faintly yellow
storage temp.
2-8°C
Quality Level
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1 of 4
This Item | W379301 | R1757 | W379312 |
|---|---|---|---|
| technique(s) gas chromatography (GC): suitable | technique(s) - | technique(s) - | technique(s) - |
| biological source microbial (fermentation) | biological source synthetic | biological source - | biological source corn |
| assay ≥99% (GC) | assay ≥98% | assay 98% | assay - |
| solubility water: 100 mg/mL, clear, colorless to faintly yellow | solubility - | solubility - | solubility - |
| Quality Level 200 | Quality Level 400 | Quality Level 100 | Quality Level 400 |
| form powder | form - | form - | form - |
Biochem/physiol Actions
Other Notes
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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What is the production strain of this product? Bacillus subtilis ATCC 21951?
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The preparation and production methods of this product is considered proprietary.
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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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