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Chemical Reagents & Chromatography

Browse our curated selection of Chemical Reagents & Chromatography from leading global manufacturers. Find research-grade reagents, certified standards, and specialty supplies backed by Cenmed's expert sourcing and technical support.

  
  • (2r 3as 5ar 5bs 9s 13s 14r 16as 16bs)-13-{[tert-butyl(dimethyl)silyl]oxy}-9-ethyl-14-methyl-7 15-dioxo-2 3 3a 5a 5b 6 7 9 10 11 12 1
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    T289434-1EA
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT289434-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-290334
    Pack Size 25 MG
    Price:
    Price: $182.82
    List Price: $203.13
    Quantity:
     
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  • (2r 3as 5ar 9s 13s 14r 16as 16br)-13-{[tert-butyl(diphenyl)silyl]oxy}-9-ethyl-14-methyl-7 15-dioxo-2 3 3a 5a 5b 6 7 9 10 11 12 13 14
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    T256005-1EA
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT256005-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-292260
    Pack Size 1 MG
    Price:
    Price: $100.62
    List Price: $111.79
    Quantity:
     
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  • (2r 3e)-2 5 5-trimethyl-3-{2-[(2 4 6-triisopropylphenyl)sulfonyl]ethylidene}bicyclo[2.1.1]hexane-25mg
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    T286370-1EA

    (2R 3E)-2 5 5-TRIMETHYL-3-{2-[(2 4 6-TRIISOPROPYLPHENYL)SULFONYL]ETHYLIDENE}BICYCLO[2.1.1]HEXANE-25MG

    Price: $182.82
    List Price: $203.13
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT286370-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-290489
    Pack Size 25 MG
    Price:
    Price: $182.82
    List Price: $203.13
    Quantity:
     
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  • (2r 3r 5s)-2-{(1s)-1-hydroxy-2-[(4-methoxybenzyl)oxy]ethyl}-3 5-dimethyl-6-heptenenitrile-1mg
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    T269174-1EA

    (2R 3R 5S)-2-{(1S)-1-HYDROXY-2-[(4-METHOXYBENZYL)OXY]ETHYL}-3 5-DIMETHYL-6-HEPTENENITRILE-1MG

    Price: $100.62
    List Price: $111.79
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT269174-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-291379
    Pack Size 1 MG
    Price:
    Price: $100.62
    List Price: $111.79
    Quantity:
     
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  • (2r 3r)-(+)-tartaric acid for resolution (c15-1285-845)
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    8185310500

    (2R 3R)-(+)-TARTARIC ACID FOR RESOLUTION (C005B-083591)

    Price: $194.10
    List Price: $215.67
    Analysis Note Assay (acidimetric): &#8805 99.0 % Spec.
    SKU8185310500
    MFR. NameSigma-Aldrich
    Catalog No. C005B-083591
    Pack Size 500 GR
    Price:
    Price: $194.10
    List Price: $215.67
    Quantity:
     
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  • (2r 3r)-2 3-bis(benzyloxy)-1 4-butanediol-5mg
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    T243280-1EA

    (2R 3R)-2 3-BIS(BENZYLOXY)-1 4-BUTANEDIOL-5MG

    Price: $182.82
    List Price: $203.13
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT243280-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-292875
    Pack Size 5 MG
    Price:
    Price: $182.82
    List Price: $203.13
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  • (2r 3r)-2 3-dihydroxybutanedioic acid;methyl (1r 9r 10s 11r 12r 19r)-11-acetyloxy-12-ethyl-4-[(12s 14r)-16-ethyl-12-methoxycarbonyl-
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    PHR3160-500MG
    General description Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards Application
    SKUPHR3160-500MG
    MFR. NameSigma-Aldrich
    Catalog No. C005B-434426
    Pack Size 500 MG
    Price:
    Price: $1,852.39
    List Price: $2,058.21
    Quantity:
     
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  • (2r 3r)-2-isopropyl-6-methyl-3-vinyl-6-hepten-1-ol-50mg
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    T290483-1EA

    (2R 3R)-2-ISOPROPYL-6-METHYL-3-VINYL-6-HEPTEN-1-OL-50MG

    Price: $182.82
    List Price: $203.13
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT290483-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-290294
    Pack Size 50 MG
    Price:
    Price: $182.82
    List Price: $203.13
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  • (2r 3r)-3 7-bis{[tert-butyl(dimethyl)silyl]oxy}-2-methyl-1-heptanol-1mg
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    T270113-1EA

    (2R 3R)-3 7-BIS{[TERT-BUTYL(DIMETHYL)SILYL]OXY}-2-METHYL-1-HEPTANOL-1MG

    Price: $100.62
    List Price: $111.79
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT270113-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-291304
    Pack Size 1 MG
    Price:
    Price: $100.62
    List Price: $111.79
    Quantity:
     
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  • (2r 3r)-4-{[tert-butyl(dimethyl)silyl]oxy}-3-methyl-1 2-butanediol-10mg
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    T269417-1EA

    (2R 3R)-4-{[TERT-BUTYL(DIMETHYL)SILYL]OXY}-3-METHYL-1 2-BUTANEDIOL-10MG

    Price: $100.62
    List Price: $111.79
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT269417-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-291357
    Pack Size 10 MG
    Price:
    Price: $100.62
    List Price: $111.79
    Quantity:
     
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  • (2r 3s 4r)-2-{[tert-butyl(dimethyl)silyl]oxy}-4-phenyl-5-hexen-3-ol-5mg
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    T262331-1EA

    (2R 3S 4R)-2-{[TERT-BUTYL(DIMETHYL)SILYL]OXY}-4-PHENYL-5-HEXEN-3-OL-5MG

    Price: $100.62
    List Price: $111.79
    Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. Sigma-Aldrich does not collect analytical data for this product.
    SKUT262331-1EA
    MFR. NameSigma-Aldrich
    Catalog No. C005B-291849
    Pack Size 5 MG
    Price:
    Price: $100.62
    List Price: $111.79
    Quantity:
     
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  • (2r,3s)-(+)-3-(benzyloxymethyl)oxirane-2-methanol 4-nitrobenzoic acid ester
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    13730-5G-F

    (2R 3S)-(+)-3-(BENZYLOXYMETHYL)OXIRANE-2-METHANOL 4-NITROBENZOIC ACID ESTER >=99.0% HPLC SUM OF ENANTIOMERS

    Price: $1,812.59
    List Price: $2,013.99
    Other Notes Stable precursor to (2R,3S)-(+)-3-(benzyloxymethyl)oxirane-2-methanol which is a versatile chiral building block Nucleophilic substitution at carbon C-1 Cuprous iodide catalyzed addition of Grignard reagents at C-2
    SKU13730-5G-F
    MFR. NameSigma-Aldrich
    Catalog No. C005B-080596
    Pack Size 5 GR
    Price:
    Price: $1,812.59
    List Price: $2,013.99
    Quantity:
     
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About Chemical Reagents & Chromatography

Cenmed Enterprises provides a comprehensive selection of Chemical Reagents & Chromatography products sourced from leading global manufacturers. Our catalog spans research-grade reagents, certified standards, and specialty compounds used across clinical, academic, and industrial laboratories worldwide.

With decades of expertise in laboratory supply distribution, we offer competitive pricing, reliable stock availability, and dedicated technical support. Whether you need small quantities for research or bulk orders for manufacturing, our team is ready to assist with sourcing, compliance documentation, and logistics.

Frequently Asked Questions

  • What documentation is provided with orders?

    All orders include a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a packing slip. Additional regulatory or compliance documentation can be requested at the time of order for products requiring special handling or import/export certification.

  • What is the minimum order quantity?

    Minimum order quantities vary by product and are listed on each product page. For bulk or custom quantity orders, please contact our sales team at 732-447-1100 or request a quote online for custom pricing.

  • How long does shipping take?

    Standard orders ship within 1–3 business days from our New Jersey distribution center. Expedited and international shipping options are available. Hazardous materials ship in compliance with IATA/DOT regulations and may require additional lead time.

  • Can I return a product?

    We accept returns on non-hazardous, unopened products within 30 days of delivery. Controlled substances, refrigerated items, and custom orders are non-returnable. To initiate a return, please complete the return request form and submit it to our customer service team for approval. Returns will be processed once your request has been reviewed and authorized.

  • Do you offer volume discounts?

    Yes. Volume pricing is available for most products in our catalog. Contact our sales team or use the "Request a Quote" feature to get custom pricing for your organization based on your annual purchase volume and specific product needs.