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Supplier: Thermo Fisher Scientific
Description: Ethyl levulinate 98%
Supplier: Thermo Fisher Scientific
Description: Levulinic acid 98+%
Supplier: Thermo Fisher Scientific
Description: Levulinic acid ≥98%
Supplier: Thermo Fisher Scientific
Description: Methyl levulinate ≥99%
Supplier: Thermo Fisher Scientific
Description: Ethyl levulinate ≥98%
Supplier: Thermo Fisher Scientific
Description: Butyl levulinate ≥98%
Supplier: Roth Carl
Description: Levulinic acid

Catalog Number: (SIAL61405-100ML)
Supplier: Merck
Description: Methyl levulinate, Sigma-Aldrich®
UOM: 1 * 100 mL


Supplier: Merck
Description: Levulinic acid, Sigma-Aldrich®

Supplier: Merck
Description: Levulinic acid, Sigma-Aldrich®

Supplier: Merck
Description: Ethyl levulinate, Sigma-Aldrich®

Catalog Number: (1086935.)
Supplier: USP
Description: USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
UOM: 1 * 1 g


Catalog Number: (PRSI49-260)
Supplier: ProSci Inc.
Description: ALAS-1 (EC 2.3.1.37) is a nuclear-encoded mitochondrial matrix enzymecatalyzing the condensation of glycine with succinyl-CoA to form delta-amino levulinate, CO2 and CoA. It regulates the first and rate-limiting step of heme biosynthetic pathway. It is one of the two isoforms of ALAS and is a pyridoxal-5 phosphate dependant housekeeping enzyme. It is ubiquitously expressed and is responsible of providing heme for cytochromes and other hemoproteins. ALAS1 in liver undergoes negative feedback regulation by heme. Transcription of ALAS1 gene is stimulated by cAMP and respiratory uncoupling whereas Phorbol esters and insulin repress ALAS1 gene expression. ALAS1 is suggested to be involved in reciprocal regulation of Heme biosynthesis and circadian clock suggesting a potential target for treatment of circadian disorders. ALAS1 gene expression is down regulated in Acute Liver failure resulting in altered heme metabolism and liver function.
UOM: 1 * 50 µG


Catalog Number: (276235-1G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Building block for 'Anti-Bredt' strained molecules.
UOM: 1 * 1 g


Catalog Number: (371335-5G)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: 4'-Hydroxybiphenyl-4-carboxylic acid 99%, Sigma-Aldrich®
UOM: 1 * 5 g


Catalog Number: (20495.265)
Supplier: VWR Chemicals
Description: Mercaptoacetic acid (thioglycolic acid) ≥98%, GPR RECTAPUR®
UOM: 1 * 500 mL

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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 +43 1 97002 - 0.
Dual use goods can only be delivered within the European Union.
Dual use goods can only be delivered within the European Union.
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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 +43 1 97002 - 0.
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