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Laysan is pronounced, "LI-"sän" and it is an albatross that is found in the islands of the Pacific Ocean. It is a large, rare bird that is known to be graceful and impressive in flight.

Our Mission
We are dedicated to building a long term relationship with our customers by offering quality PEG reagents backed up with exceptional customer service and technical support.

Products

Thank you for your interest in the reagents of Laysan Bio, Inc. Below is a list of the reagents that we offer. To find out more about the storage and handling of our reagents, please go to our FAQ page.

All sales are subject to Laysan Bio's Terms and Conditions of Sale. Please click here to view the Terms and Conditions. All products are shipped overnight or international priority for the stability of the product(s). Because of the broad range of uses for PEG reagents, Laysan Bio can not guarantee that the reagent(s) will work for each customer's specific use. If you have questions we encourage you to contact us prior to ordering the reagent(s).

In an effort to decrease delays for international shipments please include a VAT number or customs broker information in the comments section below when placing orders shipping to international locations. If this information is not included at the time of an international order, a delay may occur while we attempt to get this information. An email address is required so a tracking number can be sent to the customer. The customer is then responsible for contacting FedEx if a delay occurs. Laysan is not responsible for deliveries delayed due to international or customs issues. Thank you for your cooperation.

Click here to download a printable order form.

Laysan Bio is pleased to offer the SVA-PEG-SVA reagent as a possible replacement for customers who have used the SPA-PEG-SPA or the SC-PEG-SC in the past. Click here for more information.

Please note that we will be closed on the following days and no shipments will be able to go out on these days:
Monday, September 6, 2010
Thursday and Friday, November 25-26, 2010
Thursday and Friday, December 23-24, 2010
Friday, December 31, 2010

To view our reagents please click the item or the category header below. We will provide a lead-time and shipping costs when you place your order. If you don't see a reagent below that will fit your needs, please contact us and we will provide you with information on having it custom made for your needs. If you need a quote for quantities larger than 50 grams, please contact us for this pricing. Information regarding our ester half-lives is available on our FAQ page.

***We have listed several custom reagents that are frequently in stock. Once this stock is depleted, Laysan cannot guarantee that this reagent will be made again. Please contact us for availability on all reagents.

Please contact us at info@laysanbio.com or by phone at 1-888-852-9726 or 256-586-9004 with any questions.

Multi-Arm

4arm-PEG-Acrylate, MW 10,000
4arm-PEG-Acrylate, MW 20,000

4arm-PEG-Amine, MW 10,000
4arm-PEG-Amine, MW 20,000

4arm-PEG-Carboxymethyl (CM), MW 10,000

4arm-PEG-Epoxide, MW 10,000
4arm-PEG-Epoxide, MW 20,000

4arm-PEG-Maleimide, MW 10,000
4arm-PEG-Maleimide, MW 20,000

4arm-PEG-Succinimidyl Carboxymethyl (SCM), MW 10,000

4arm-PEG-Thiol, MW 10,000

Nucleophilic

mPEG-Amine, MW 550
mPEG-Amine, MW 1,000
mPEG-Amine, MW 2,000
mPEG-Amine, MW 5,000
mPEG-Amine, MW 10,000
mPEG-Amine, MW 20,000
mPEG-Amine, MW 30,000

Amine-PEG-Amine, MW 1,000
Amine-PEG-Amine, MW 2,000
Amine-PEG-Amine, MW 3,400
Amine-PEG-Amine, MW 5,000
Amine-PEG-Amine, MW 10,000
Amine-PEG-Amine, MW 20,000
Amine-PEG-Amine, MW 35,000

Hydrazide-PEG-Hydrazide, MW 2,000
Hydrazide-PEG-Hydrazide, MW 3,400

mPEG-Hydrazide, MW 2,000
mPEG-Hydrazide, MW 5,000
mPEG-Hydrazide, MW 10,000
mPEG-Hydrazide, MW 20,000

Carboxyl

mPEG-Carboxymethyl (CM), MW 2,000 (This product was formerly known as mPEG-COOH)
mPEG-Carboxymethyl (CM), MW 5,000 (This product was formerly known as mPEG-COOH)
mPEG-Carboxymethyl (CM), MW 10,000 (This product was formerly known as mPEG-COOH)
mPEG-Carboxymethyl (CM), MW 20,000 (This product was formerly known as mPEG-COOH)

Carboxymethyl-PEG-Carboxymethyl, MW 1,000 (This product was formerly known as COOH-PEG-COOH)
Carboxymethyl-PEG-Carboxymethyl, MW 2,000 (This product was formerly known as COOH-PEG-COOH)
Carboxymethyl-PEG-Carboxymethyl, MW 3,400 (This product was formerly known as COOH-PEG-COOH)
Carboxymethyl-PEG-Carboxymethyl, MW 5,000 (This product was formerly known as COOH-PEG-COOH)
Carboxymethyl-PEG-Carboxymethyl, MW 10,000 (This product was formerly known as COOH-PEG-COOH)

Electrophilic

mPEG-Butyraldehyde, MW 5,000

mPEG-Butyraldehyde, MW 20,000
mPEG-Butyraldehyde, MW 30,000

Butyraldehyde-PEG-Butyraldehyde, MW 3,400
Butyraldehyde-PEG-Butyraldehyde, MW 5,000
Butyraldehyde-PEG-Butyraldehyde, MW 10,000
Butyraldehyde-PEG-Butyraldehyde, MW 20,000

Epoxide-PEG-Epoxide, MW 2,000
Epoxide-PEG-Epoxide, MW 5,000

mPEG-Nitrophenyl Carbonate (NPC), MW 1,000
mPEG-Nitrophenyl Carbonate (NPC), MW 2,000
mPEG-Nitrophenyl Carbonate (NPC), MW 5,000
mPEG-Nitrophenyl Carbonate (NPC), MW 10,000
mPEG-Nitrophenyl Carbonate (NPC), MW 20,000

NPC-PEG-NPC, MW 2,000
NPC-PEG-NPC, MW 3,400

mPEG-Propionaldehyde, MW 5,000
mPEG-Propionaldehyde, MW 20,000
mPEG-Propionaldehyde, MW 30,000

SVA-PEG-SVA, MW 5,000

Sulfhydryl

mPEG-Maleimide, MW 2,000
mPEG-Maleimide, MW 5,000
mPEG-Maleimide, MW 10,000
mPEG-Maleimide, MW 20,000
mPEG-Maleimide, MW 30,000

MAL-PEG-MAL, MW 2,000
MAL-PEG-MAL, MW 3,400
MAL-PEG-MAL, MW 5,000
MAL-PEG-MAL, MW 10,000

mPEG-OPSS, MW 2,000
mPEG-OPSS, MW 5,000
mPEG-OPSS, MW 10,000

OPSS-PEG-OPSS, MW 2,000
OPSS-PEG-OPSS, MW 3,400
OPSS-PEG-OPSS, MW 10,000

mPEG-Thiol, MW 1,000
mPEG-Thiol, MW 2,000
mPEG-Thiol, MW 5,000
mPEG-Thiol, MW 10,000
mPEG-Thiol, MW 20,000

Thiol-PEG-Thiol, MW 3,400
Thiol-PEG-Thiol, MW 5,000
Thiol-PEG-Thiol, MW 10,000

*We no longer carry the Vinylsulfone (VS) reagents. If you have previously used the VS-PEG-SCM (also known as VS-PEG-NHS), please contact us about a possible alternative.

Heterofunctional

*If you have used any of our heterofunctinal reagents with the SCM or SC end groups, please also consider our new heterofunctional reagents with the SVA. We will be adding those when they become available in our inventory.

Biotin-PEG-Maleimide, MW 3,400
Biotin-PEG-Maleimide, MW 5,000

Biotin-PEG-Amine, MW 2,000
Biotin-PEG-Amine, MW 3,400
Biotin-PEG-Amine, MW 5,000

Biotin-PEG-SC, MW 2,000 (There is a possibility that we may not offer this product once stock is depleted.)
Biotin-PEG-SC, MW 3,400 (There is a possibility that we may not offer this product once stock is depleted.)
Biotin-PEG-SC, MW 5,000 (There is a possibility that we may not offer this product once stock is depleted.)

Biotin-PEG-SCM, MW 3,400
Biotin-PEG-SCM, MW 5,000

Biotin-PEG-Silane, MW 3,400

Biotin-PEG-SVA, MW 3,400
Biotin-PEG-SVA, MW 5,000

BOC-NH-PEG-Amine, MW 2,000
BOC-NH-PEG-Amine, MW 3,400

BOC-NH-PEG-NPC, MW 5,000

BOC-NH-PEG-SC, MW 3,400
BOC-NH-PEG-SC, MW 5,000

BOC-NH-PEG-SCM, MW 1,000
BOC-NH-PEG-SCM, MW 2,000
BOC-NH-PEG-SCM, MW 3,400
BOC-NH-PEG-SCM, MW 5,000

Carboxymethyl-PEG-SCM, MW 35,000

Carboxymethyl-PEG-Thiol, MW 1,000
Carboxymethyl-PEG-Thiol, MW 2,000
Carboxymethyl-PEG-Thiol, MW 3,400
Carboxymethyl-PEG-Thiol, MW 5,000

FMOC-NH-PEG-Carboxymethyl, MW 3,400

FMOC-NH-PEG-Amine *TFA salt, MW 1,000 (There is a possibility that we may not offer this product once stock is depleted.)
FMOC-NH-PEG-Amine *TFA salt, MW 5,000 (There is a possibility that we may not offer this product once stock is depleted.)

FMOC-NH-PEG-OH, MW 5,000

FMOC-NH-PEG-SCM, MW 2,000
FMOC-NH-PEG-SCM, MW 3,400
FMOC-NH-PEG-SCM, MW 5,000

HO-PEG-Amine, MW 1,000
HO-PEG-Amine, MW 3,400
HO-PEG-Amine, MW 5,000
HO-PEG-Amine, MW 35,000

HO-PEG-CM, MW 3,400 (This product was formerly known as HO-PEG-COOH)

HO-PEG-Maleimide, MW 3,400
HO-PEG-Maleimide, MW 5,000

Maleimide-PEG-SCM, MW 3,400
Maleimide-PEG-SCM, MW 5,000
Maleimide-PEG-SCM, MW 10,000

Maleimide-PEG-SVA, MW 3,400

NH2-PEG-CM, MW 1,000 (This product was formerly known as NH2-PEG-COOH)
NH2-PEG-CM, MW 2,000 (This product was formerly known as NH2-PEG-COOH)
NH2-PEG-CM, MW 3,400 (This product was formerly known as NH2-PEG-COOH)
NH2-PEG-CM, MW 5,000 (This product was formerly known as NH2-PEG-COOH)
NH2-PEG-CM, MW 10,000 (This product was formerly known as NH2-PEG-COOH)

NH2-PEG-SH, MW 1,000
NH2-PEG-SH, MW 3,400
NH2-PEG-SH, MW 5,000

NH2-PEG-Valeric Acid, MW 3,400
NH2-PEG-Valeric Acid, MW 5,000

OPSS-PEG-CM, MW 5,000

OPSS-PEG-SCM, MW 3,400

OPSS-PEG-SVA, MW 2,000
OPSS-PEG-SVA, MW 3,400
OPSS-PEG-SVA, MW 5,000

SC-PEG-CM (methyl ester), MW 3,400

Vinyl

Acrylate-PEG-Acrylate, MW 1,000
Acrylate-PEG-Acrylate, MW 2,000
Acrylate-PEG-Acrylate, MW 3,400
Acrylate-PEG-Acrylate, MW 5,000
Acrylate-PEG-Acrylate, MW 10,000
Acrylate-PEG-Acrylate, MW 20,000

Acrylate-PEG-Maleimide, MW 3,400

Acrylate-PEG-SCM, MW 2,000
Acrylate-PEG-SCM, MW 3,400
Acrylate-PEG-SCM, MW 5,000

Acrylate-PEG-SVA, MW 3,400

mPEG-Acrylate, MW 5,000
mPEG-Acrylate, MW 10,000

Biotin

mPEG-Biotin, MW 2,000
mPEG-Biotin, MW 5,000
mPEG-Biotin, MW 20,000

Silane

mPEG-Silane, MW 1,000
mPEG-Silane, MW 2,000
mPEG-Silane, MW 5,000

Silane-PEG-Silane, MW 3,400

Phospholipid

mPEG-DSPE, MW 5,000

DSPE-PEG-Amine, MW 2,000

DSPE-PEG-Biotin, MW 3,400

DSPE-PEG-Maleimide, MW 3,400

Tosylate

mPEG-Tosylate, MW 30,000

Tosylate-PEG-Tosylate, MW 35,000

Valeric Acid

Valeric Acid-PEG-Valeric Acid, MW 5,000
Valeric Acid-PEG-Valeric Acid, MW 20,000

PLA

mPEG-PLA, MW 5,000

Please visit www.alpolymers.com or call 205-383-1794 or 1-877-alpoly-7 for product or ordering information for the products listed below.

Homopolypeptides

PEGylated polyamino acids