BOC-L-ASPARAGINE

PRODUCT IDENTIFICATION
CAS NO. 7536-55-2

BOC-L-ASPARAGINE

EINECS NO. 231-405-2
FORMULA C9H16N2O5
MOL WT. 232.24

H.S. CODE

  

TOXICITY

  
SYNONYMS Boc-Asn-OH; N-(alpha)-tert-Butoxycarbonyl-L-asparagine;
N2-[(tert-butoxy)carbonyl]-L-asparagine; N2-[(tert-Butoxy)carbonyl]-L-asparagin; N2-[(terc-butoxi)carbonil]-L-asparraguina; N2-[(tert-butoxy)carbonyl]-L-asparagine; N-alpha-t-BOC-L-asparagine; N-(tert-Butoxycarbonyl)-L-asparagine;
DERIVATION

 

CLASSIFICATION

  

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE White to off-white crystalline powder
MELTING POINT 170 - 175 C (Decomposes)
BOILING POINT

 

SPECIFIC GRAVITY  
SOLUBILITY IN WATER

 

pH  
VAPOR DENSITY

 

AUTOIGNITION

  

NFPA RATINGS

 Health: 1; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY

Stable under ordinary conditions. Moisture and light sensitive

GENERAL DESCRIPTION & APPLICATIONS
An unnatural amino acid for peptidomimetics and biological research.
SALES SPECIFICATION

APPEARANCE

 White to off-white crystalline powder

ASSAY

 99.0% min
OPTICAL ROTATION [a]20 -7° ~ -8° (C=2 in DMF)
SOLUTION CLARITY

clear

Fe

10ppm max
HEAVY METALS

10ppm max

As

2ppm max
LOSS ON DRYING

0.5% max
TRANSPORTATION
PACKING
 
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 22-24/25

GENERAL DESCRIPTION OF AMINO ACID

Amino Acid

Abbreviation

Formula (Mol WT)

pK1

pK2

pKR

pI

Hydropathy Index

3-Letters

1-Letter

-COOH

-NH3+

R group
Alanine

Ala

A

 C3H7NO2 (89.09)

2.34

9.69

-

6.00

1.8
Arginine

Arg

R

 C6H14N4O2(174.20)

2.17

9.04

12.48

10.76

-4.5
Asparagine

Asn

N

 C4H8N2O3(132.12)

2.02

8.80

-

5.41

-3.5
Aspartic Acid

Asp

D

 C4H7NO4(133.10)

1.88

9.60

3.65

2.77

-3.5
Cysteine

Cys

C

 C3H7NO2S(240.30)

1.96

10.128

8.18

5.07

2.5
Glutamic Acid

Glu

E

 C5H9NO4(147.13)

2.19

9.67

4.25

3.22

-3.5
Glutamine

Gln

Q

 C5H10N2O3(146.15)

2.17

9.13

-

5.65

-3.5
Glycine

Gly

G

 C2H5O2(75.07)

2.34

9.60

-

5.97

-0.4
Histidine

His

H

 C6H9N3O2(155.16)

1.82

9.17

6.00

7.59

-3.2
Isoleucine

Ile

I

 C6H13NO2(131.18)

2.36

9.60

-

6.02

4.5
Leucine

Leu

L

 C6H13NO2(131.18)

2.36

9.60

-

5.98

3.8
Lysine

Lys

K

 C6H14N2O2(146.19)

2.18

8.95

10.53

9.74

-3.9
Methionine

Met

M

 C5H11NO2S(149.21)

2.28

9.21

-

5.74

1.9
Phenylalanine

Phe

F

 C9H11NO2(165.19)

1.83

9.13

-

5.48

2.8
Proline

Pro

P

 C5H9NO2(115.13)

1.99

10.60

-

6.30

1.6
Serine

Ser

S

 C3H7NO3(105.19)

2.21

9.15

-

5.58

-0.8
Threonine

Thr

T

 C4H9NO3(119.12)

2.09

9.10

-

5.60

-0.7
Tryptophan

Trp

W

 C11H10N2O2(204.23)

2.83

9.39

-

5.89

-0.9
Tyrosine

Tyr

Y

 C9H11NO3(181.19)

2.20

9.11

10.07

5.66

-1.3
Valine

Val

V

 C5H11NO2(117.15)

2.32

9.62

-

5.96

4.2