ACETYL-L-ALANINE

PRODUCT IDENTIFICATION

CAS NO. 97-69-8

N-ACETYL-L-ALANINE

EINECS NO. 202-602-0
FORMULA CH3CONHCH(CH3)COOH
MOL WT. 131.13

H.S. CODE

 

TOXICITY

 
SYNONYMS N-Acetyl-S-alanine; N-Acetylalanine; N-Acetyl-L-alpha-alanine; Ac-Ala-OH;
DERIVATION

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE White to off-white crystalline powder
MELTING POINT 125 - 126 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

IDENTIFICATION

pass

ASSAY (HPLC)

99.0% min
OPTICAL ROTATION [a]20 -62° ~ -65°(C=2 in Water)
SOLUTION CLARITY

clear

RELATED SUBSTANCE

pass

LOSS ON DRYING

0.5% max

TRANSPORTATION
PACKING
 
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: n/a, Risk Phrases: n/a, Safety Phrases: 24/25-28A-37-45

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