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/449/386/product-dating-information-mk.pdf
S9765
Starch, soluble
ACS reagent
Synonym(s):
Soluble Starch
About This Item
Recommended Products
biological source
potato
Quality Level
grade
ACS reagent
form
powder
ign. residue
≤0.4%
color
white
pH
5.0-7.0 (25 °C, 2% in solution)
mp
256 -258 °C ((493 - 496 °F ))
solubility
H2O: passes test
suitability
passes test for sensitivity as indicator
storage temp.
room temp
SMILES string
O1[C@@H]([C@@H]([C@H]([C@@H]([C@H]1CO)O)O)O)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)O)CO
InChI
1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3-,4-,5-,6+,7-,8-,9-,10-,11+,12-/m1/s1
InChI key
GUBGYTABKSRVRQ-ASMJPISFSA-N
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Application
Biochem/physiol Actions
Preparation Note
There should be no noticeable change in opalescence.
Other Notes
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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Customers Also Viewed
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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How is the starch soluble? Is it a product of hydrolysis of poppy potato starch?
1 answer-
This product originates from Solanum tuberosum. Differences in the structure of amylose and amylopectin allow it to be soluble.
See the link below for a publication that may be of interest: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6049785/#:~:text=Amylopectin%20from%20normal%20potato%20starch,in%20cold%20water%20%5B8%5D.The preparation instructions are as follows:
- Prepare a paste of 2g of the starch with a little cold water
- Add to it 100ml of boiling water with stirring.
The solution should be no more than opalescent and on cooling it should remain a liquid and not increase in opalescence.Please see the link below for a sample Certificate of Origin:
https://www.sigmaaldrich.com/US/en/coo/undefined/S9765/SLCF7026Helpful?
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what is the purity of this starch
1 answer-
This product is not tested for purity. It is primarily used as an enzyme substrate. The residue on ignition would offer some indication of the level of impurity, however this is not directly correlated. See the link below for a sample Certificate of Analysis:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/S9765-BULKSLCQ5576.pdfHelpful?
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is this product suiable as the indicator for determine iodine?
1 answer-
It has not been determined if this product is suitable as an indicator to determine iodine. While it may be suitable, product number 85642 has been tested for use in this application. See the link below for a sample CofA for review. https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/85642-BULKBCCJ9269.pdf
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What is the Department of Transportation shipping information for this product?
1 answer-
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.
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Is product S9765, Starch, soluble, partially hydrolyzed by a chemical or enzymatic process during manufacture?
1 answer-
Product S9765, Starch, soluble is a native starch preparation from potatoes and has not been chemically or enzymatically modified as indicated by our supplier.
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