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Product Image-89060-404

Double Tube Recrystallizer, Ace Glass Incorporated

Catalog Number: (89060-404)
Supplier: Ace Glass
Description: Used for multiple recrystallization of extremely air-sensitive compounds.

Small Business Enterprise Product available on GSA Advantage®


Product Image-KT747332-0002

Accessories for KONTES® Craig Recrystallization Tube Set, Kimble Chase

Supplier: DWK Life Sciences (KIMBLE)
Description: Craig Recrystallization Tube, 1 mL The Craig stopper is placed in the tube neck and the whole apparatus is inverted into a test or centrifuge tube.

Product Image-KT747330-0003

KONTES® Craig Recrystallization Tube Set, Kimble Chase

Catalog Number: (KT747330-0003)
Supplier: DWK Life Sciences (KIMBLE)
Description: Recrystallization set consists of a Craig tube and a glass plug.
Product Image-89075-196

Craig Recrystallization Tube, Microscale, Ace Glass Incorporated

Supplier: Ace Glass
Description: Microscale Craig tube for recrystallizing small quantities of reaction product.

Small Business Enterprise Product available on GSA Advantage®

Product Image-60004-148

Synthware Tubes, Craig Recrystallization, Microscale, Kemtech America

Catalog Number: (60004-148)
Supplier: Kemtech America
Description: Craig recystalllization tubes for microscale applications.

Small Business Enterprise Minority or Woman-Owned Business Enterprise


Product Image-PI90033

Pierce™ Mass Spectrometry Reagents, MALDI Matrices, Single-Use, Thermo Scientific

Supplier: Invitrogen
Description: MALDI Matrices are highly purified, recrystallized reagents packaged in convenient single-use tubes sufficient for analyzing up to 96 samples by matrix assisted laser desorption ionization.

SDS Certificates

Product Image-KT283550-0007

Craig Recrystallization Tube, DWK LIFE SCIENCES

Catalog Number: (KT283550-0007)
Supplier: DWK Life Sciences (KIMBLE)
Description: A combination crystallizing and filtration centrifuge tube. Filtered solutions are allowed to cool in the Craig tube, inducing crystallization.
Product Image-80064-800

Swivel Fritted Filters, Airfree, SCHLENK, Chemglass

Supplier: Chemglass
Description: Swivel fritted filters are used in the filtration and recrystallization of highly sensitive materials.

Small Business Enterprise

Image Unavailable-76177-376

Lycopene (from tomato)

Supplier: MP Biomedicals
Description: Natural tomato lycopene is a mixture of isomers, primarily (all-E), but also some (5-Z) and two lesser and unidentified cis isomers, all of which are difficult to resolve by LC. Lycopene is an open chain unsaturated carotenoid that gives tomatoes, guava, rose hip, watermelon and pink grapefruit its red color. Studies show that lycopene intake is significantly associated with lower risk of lung, colon and stomach carcinogenesis. It is an antioxidant.
Isolated from commercially-grown tomatoes (L. esculentum) and once recrystallized and hexane washed.
Antioxidant micronutrient of tomatoes associated with decreased risk for cancer and cardiovascular disease. Enhances gap junction communication between cells via upregulation of connexin 43 and reduces proliferation of cancer cells in culture. Inhibits cholesterol synthesis and enhances low-density lipoprotein degradation. In vitro, lycopene is a powerful carotenoid quencher of singlet oxygen, being 100 times more efficient in test tube studies of singlet-oxygen quenching action than vitamin E, which in turn has 125 times the quenching action of glutathione (water soluble). Lycopene metabolite apo-10'-lycopenal, or ALA, may have an important role in the metabolism of hepatic lipids, and may prevent build up.
-20 °C, protect from light, store under nitrogen.

Certificates

Image Unavailable-AA41862-14

Tris(2,2,6,6-tetramethyl-3,5-heptanedionato-O,O')iron(III) ≥99.9% (metals basis), crystals, recrystallized

Supplier: Thermo Scientific Chemicals
Description: recrystallized, 99.9% (metals basis).Crystalline,CAUTION: May irritate eyes, skin, and respiratory tract,25g,5g.

SDS Certificates

Image Unavailable-220093-498

Palladium(II) acetate ≥97%, recrystallized

Catalog Number: (220093-498)
Supplier: Sigma Aldrich
Description: 1G CAS 3375-31-3

Blocked
Image Unavailable-76177-296

Bilirubin (from porcine gall bladder)

Supplier: MP Biomedicals
Description: Bilirubin is the principal pigment of bile and constituent of many biliary calculi and also found in blood. As the major end-product of the biological breakdown of heme, bilirubin is the chromophore responsible for coloration in various forms of jaundice.
Bilirubin is suitable for use in the preparation of standard stock solutions of bilirubin for color density comparison in the determination of serum bilirubin.
It appears to function as an antioxidant and efficient peroxyl radical scavenger, protecting membrane lipids from oxidation by these radicals. At nanomolar concentrations it has been shown to protect neurons from oxidative damage.
Bilirubin is produced from Ox-gall which is sterilized before extraction with high pressure vapour at 120 °C. Then the bilirubin is extracted in a continuous extraction process with chloroform as a crude product. Recrystallization and purification is with ethanol and chloroform.
-20°C. Protect from light.

Product Image-75797-072

Platinum 95%/Gold 5% Dishes, Heraeus

Supplier: HERAEUS MATERIALS TECHNOLOGY NA
Description: These dishes are made with 95% Platinum and 5% Gold.

Image Unavailable-700004-282

Acetic acid glacial ≥99.7% ACS

Supplier: Spectrum Chemicals
Description: Acetic Acid, Glacial, Reagent, ACS, also known under the name ethanoic acid, it is an organic compound and a colorless liquid. It has a distinctive sour taste and pungent smell. It is the main component of Vinegar after water (8% by volume). Classified as a weak Acid, when concentrated it is corrosive and can attack the skin. In its Glacial form (undiluted), it is used as a polar protic solvent. As a solvent it is used for purification by recrystallization of organic compounds and in the production of terephtalic acid. As an ACS grade Reagent, Spectrum Chemical manufactured Acetic Acid is used as the quality standard against which other substances are graded and has met the toughest regulatory standards for quality and purity

SDS Certificates Small Business Enterprise

Product Image-75797-054

Platinum Dishes, Heraeus

Supplier: HERAEUS MATERIALS TECHNOLOGY NA
Description: These Dishes are made with 99.95% Pure Platinum.

Product Image-28297-364

Whatman™ Quantitative Filter Papers, Hardened Low Ash Grades, Grade 54

Supplier: Cytiva
Description: Whatman Grade 54 hardened low ash quantitative filter paper for Büchner funnel and Hirsch funnel filtration enables fast vacuum suction filtration for recrystallization applications.

Product available on GSA Advantage®

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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