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????? ??? ???
?? ??:
3130-87-8
???:
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???(??):
?????
???:
DL-Asparagine monohydrate
???(??):
DL-Asn;DL-ASPARAGINE;ASPARAGINE;h-dl-asn.h;H-DL-Asn-OH;DL-Aspartamine;Asparagine,99%;ASPARAGINE, DL-;DL-Asparagine.H2O;DL- Asparaning H2O
CBNumber:
CB4187237
???:
C4H8N2O3
??? ??:
132.12
MOL ??:
3130-87-8.mol
MSDS ??:
SDS

????? ??

???
220 °C (dec.)(lit.)
?? ?
438.0±40.0 °C(Predicted)
??
1.404±0.06 g/cm3(Predicted)
?? ??
Room Temperature
???
?? ???(??), ?(??) ? ???
?? ?? (pKa)
2.17(at 20℃)
??? ??
?? ??? ??
??
???
???
??
BRN
6234992
?? ??
peptide synthesis
??? ?? ??
FRAGRANCE
SKIN CONDITIONING
HAIR CONDITIONING
ANTISTATIC
?? ?? ??
DL-Asparagine monohydrate (3130-87-8)
InChI
1S/C4H8N2O3.H2O/c5-2(4(8)9)1-3(6)7;/h2H,1,5H2,(H2,6,7)(H,8,9);1H2
InChIKey
RBMGJIZCEWRQES-UHFFFAOYSA-N
SMILES
O.NC(CC(N)=O)C(O)=O
LogP
-1.880 (est)
CAS ??????
3130-87-8(CAS DataBase Reference)
EPA
Asparagine (3130-87-8)
??
  • ?? ? ?? ??
??? ?? Xn
?? ???? ?? 20/21/22-36/37/38
????? 24/25-36-26
WGK ?? 3
TSCA TSCA listed
HS ?? 29241900
???? ??? 11 - Combustible Solids
????(GHS):
?? ?:
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
??????:
NFPA 704
1
0 0

????? MSDS


DL-Aspartic acid 4-amide monohydrate

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white fine crystalline powder, odorless; soluble in acid or alkali solution, slightly soluble in water, insoluble in ethanol, ether and other organic solvents.

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DL-asparagine is a racemic mixture of the non-essential amino acids, L and D-aparagine. It is generally used in growth-media for bacteria-growth. DL-Asparagine monohydrate can also be used to synthesize other salts such as DL-asparaginium perchlorate, DL-asparaginium nitrate and dimethyl DL-aspartate.

??

ChEBI: An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group.

?? ??

DL-Asparagine monohydrate was synthesized by dissolving maleic anhydride in 1,4-dioxane solution and refluxing with benzylamine after ammonolysis, followed by catalytic hydrogenation.

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