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2-chloronicotinic acid

2-Chloronicotinic acid Product Name: 2-Chloronicotinic acid Manufacturer: Boxing Jinxin Chemical Industry Co..Ltd Synonyms: 2-Chloro-3-pyridinecarboxylic acid?2-Chloropyridine-3-carboxylic acid CAS Registry Number: [ 2942-59-8 ] Formula: C6H4ClNO2 Molecular Weight: 157.5 Specifications Appearance white crystal Purity (%) >99.5 Moisture (%) <0.3 6-Chloronicotinic acid <0.08 Sulfate ash (%) <0.2 Melting point (?C) 176-180 Risk Term R36/37/38 Safety Term S24/25; S26; S37/39 Hazard Codes Xi Packaging & Storage 25 kg net in carton drum. Store in a cool, dry, well-ventilated area away from incompatible substances Usage As intermediate of pharmaceutical (such as Pranoprofen, Nevirapine and other pain-killer drug) or intermediate of amide pesticides (such as Nicosulfuron, Diflufenican).

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BrettPhos Purified 98%

BrettPhos, Cas# 1070663-78-3

Appearance: off-white solid

Assay:98%min

melting point:192 ºC -195ºC

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L-tert.Leucine USP 99%

D-Phenylalanine 673-06-3
D-Proline 344-25-2
D-Tryptophan 153-94-6
L-tert.Leucine 20859-02-3
D-Phenylalaninol 5267-64-1
L-Phenylalaninol 3182-95-4
(S)-(+)-2-Phenylglycinol 20989-17-7
(R)-(-)-2-Phenylglycinol 56613-80-0
L-Valine methyl ester hydrochloride 6306-52-1
L-Leucine benzyl ester tosylate 1738-77-8
D-tryptophan methyl ester hydrochloride 14907-27-8
L-tert-Leucine methyl ester hydrochloride 63038-27-7
L-Phenylalanine benzyl ester hydrochloride 2462-32-0
L-Valine benzyl ester hydrochloride 2462-34-2
4-Nitro-L-phenylalanine monohydrate 207591-86-4
Acetyl-L-Phenylalanine 2018-61-3
Acetyl-trans-4-hydroxy-L-proline 33996-33-7
N-ω-Nitro-L-arginine 2149-70-4
2-BROMOPROPENE 557-93-7
Sodium methanesulfinate 20277-69-4
3-Chloro-2,4,5-trifluorobenzoic acid 101513-77-3 
2,5-Dibromopyridine 624-28-2
(S)-2-Hydroxyl -3-methoxy-3,3-diphenylpropanoic acid 178306-52-0
(S)-4-Benzyl-2-oxazolidinone 90719-32-7 
(R)-4-Benzyl-2-oxazolidinone 102029-44-7
(S)-(+)-4-Phenyl-2-oxazolidinone 99395-88-7
(R)-(-)-4-Phenyl-2-oxazolidinone 90319-52-1
Boc-D-Phenylalanine 18942-49-9
Boc-D-Phenylalaninol 106454-69-7
Boc-L-Phenylalanine methyl ester 51987-73-6
N-α-Boc-N-ω-nitro-L-arginine 2188-18-3
Boc-L-tert-leucine 62965-35-9
Boc-L-homoPhenylalanine 100564-78-1
Boc-L-Leucine monohydrate 13139-15-6
Boc-L-Phenylalanine 13734-34-4
Boc-Gly-OtBu 111652-20-1
BOC-L-Prolinol 69610-40-8
Boc-L-Proline 15761-39-4
MOC-L-Valine 74761-42-5
Moc-L-tert-leucine 162537-11-3 
L-Glutamic acid diethyl ester hydrochloride 1118-89-4
Z-D-Proline 6404-31-5
Z-L-Valine 1149-26-4
Fmoc-L-Aspartic acid β-tert.buty ester 71989-14-5
N-α-Fmoc-N-ε-Boc-L-lysine 71989-26-9
Fmoc-L-Valine 68858-20-8
Fmoc-L-Phenylalanine 35661-40-6
N-α-Fmoc-L-tryptophan 35737-15-6
Fmoc-L-glutamic acid γ-tert·butyl ester 71989-18-9
Fmoc-L-isoleucine 71989-23-6
Fmoc-Glycine 29022-11-5
N-α-Fmoc-N-im-trityl-L-histidine 109425-51-6
Fmoc-L-Leucine 35661-60-0
Fmoc-S-trityl-L-Cysteine 103213-32-7
Boc-L-glutamic acid γ-methyl ester 45214-91-3
BOC-L-phenylglycinol 117049-14-6
BOC-D-phenylglycinol 102089-74-7
Boc-L-Phenylalaninol 66605-57-0
Cbz-L-Phenylalaninol 6372-14-1 
L-Alanine isopropyl ester hydrochloride 39825-33-7
N-ε-Trifluoroacetyl-L-lysine 10009-20-8
D-Alaninol 35320-23-1
Boc-Sarcosine 13734-36-6
Boc-2-Aminoisobutyric acid 30992-29-1
Boc-trans-4-hydroxy-L-proline 13726-69-7
Boc-Pyr-Ome 108963-96-8
Boc-L-Piperidine-2-carboxylic acid 26250-84-0
 

Suppliers
P-Reagent Purified 98%

P-Reagent, Cas# 102691-36-1

Appearance: colorless to light yellow oily liquid

Assay:98%min

Water:0.5%max

Suppliers
d(+)-tryptophan USP 99

D-Phenylalanine 673-06-3
D-Proline 344-25-2
D-Tryptophan 153-94-6
L-tert.Leucine 20859-02-3
D-Phenylalaninol 5267-64-1
L-Phenylalaninol 3182-95-4
(S)-(+)-2-Phenylglycinol 20989-17-7
(R)-(-)-2-Phenylglycinol 56613-80-0
L-Valine methyl ester hydrochloride 6306-52-1
L-Leucine benzyl ester tosylate 1738-77-8
D-tryptophan methyl ester hydrochloride 14907-27-8
L-tert-Leucine methyl ester hydrochloride 63038-27-7
L-Phenylalanine benzyl ester hydrochloride 2462-32-0
L-Valine benzyl ester hydrochloride 2462-34-2
4-Nitro-L-phenylalanine monohydrate 207591-86-4
Acetyl-L-Phenylalanine 2018-61-3
Acetyl-trans-4-hydroxy-L-proline 33996-33-7
N-ω-Nitro-L-arginine 2149-70-4
2-BROMOPROPENE 557-93-7
Sodium methanesulfinate 20277-69-4
3-Chloro-2,4,5-trifluorobenzoic acid 101513-77-3 
2,5-Dibromopyridine 624-28-2
(S)-2-Hydroxyl -3-methoxy-3,3-diphenylpropanoic acid 178306-52-0
(S)-4-Benzyl-2-oxazolidinone 90719-32-7 
(R)-4-Benzyl-2-oxazolidinone 102029-44-7
(S)-(+)-4-Phenyl-2-oxazolidinone 99395-88-7
(R)-(-)-4-Phenyl-2-oxazolidinone 90319-52-1
Boc-D-Phenylalanine 18942-49-9
Boc-D-Phenylalaninol 106454-69-7
Boc-L-Phenylalanine methyl ester 51987-73-6
N-α-Boc-N-ω-nitro-L-arginine 2188-18-3
Boc-L-tert-leucine 62965-35-9
Boc-L-homoPhenylalanine 100564-78-1
Boc-L-Leucine monohydrate 13139-15-6
Boc-L-Phenylalanine 13734-34-4
Boc-Gly-OtBu 111652-20-1
BOC-L-Prolinol 69610-40-8
Boc-L-Proline 15761-39-4
MOC-L-Valine 74761-42-5
Moc-L-tert-leucine 162537-11-3 
L-Glutamic acid diethyl ester hydrochloride 1118-89-4
Z-D-Proline 6404-31-5
Z-L-Valine 1149-26-4
Fmoc-L-Aspartic acid β-tert.buty ester 71989-14-5
N-α-Fmoc-N-ε-Boc-L-lysine 71989-26-9
Fmoc-L-Valine 68858-20-8
Fmoc-L-Phenylalanine 35661-40-6
N-α-Fmoc-L-tryptophan 35737-15-6
Fmoc-L-glutamic acid γ-tert·butyl ester 71989-18-9
Fmoc-L-isoleucine 71989-23-6
Fmoc-Glycine 29022-11-5
N-α-Fmoc-N-im-trityl-L-histidine 109425-51-6
Fmoc-L-Leucine 35661-60-0
Fmoc-S-trityl-L-Cysteine 103213-32-7
Boc-L-glutamic acid γ-methyl ester 45214-91-3
BOC-L-phenylglycinol 117049-14-6
BOC-D-phenylglycinol 102089-74-7
Boc-L-Phenylalaninol 66605-57-0
Cbz-L-Phenylalaninol 6372-14-1 
L-Alanine isopropyl ester hydrochloride 39825-33-7
N-ε-Trifluoroacetyl-L-lysine 10009-20-8
D-Alaninol 35320-23-1
Boc-Sarcosine 13734-36-6
Boc-2-Aminoisobutyric acid 30992-29-1
Boc-trans-4-hydroxy-L-proline 13726-69-7
Boc-Pyr-Ome 108963-96-8
Boc-L-Piperidine-2-carboxylic acid 26250-84-0
 

Suppliers
mPEG-amine Purified 97

Catalog No. P170001
Product Name mPEG-amine
Synonyms mPEG-NH2
CAS# 80506-64-5
M.W. 1000, 2000, 5000
Purity >98%
Packing Size 1g,5g,25g,100g,1kg
Appearance Powder

 

For more polydisperse PEGs, please browse our website: www.leobiochem.com or send email to sales@leobiochem.com 

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(R,R)-DPEN Technical 97

Chemical Name:(R,R)-DPEN
Synonyms:

(1R,2R)-(+)-1,2-Diamino-1,2-diphenylethane

CAS Number:35132-20-8
Molecular Formula:

C14H16O4N2

Molecular Weight:212.29
MDL Number:MFCD00082769

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