4-MU-GlcNAc
GlcNAc-b-4MU
 4-Methylumbelliferyl N-acetyl-β-D-glucosaminide, CAS: 37067-30-4
C18H21NO8.2H2O / 415.4
MFCD00065481
4-Methylumbelliferyl-2-acetamido-2-deoxy-β-D-glucopyranoside is a fluorogenic substrate for β-hexosaminidases. Upon enzymatic cleavage by β-hexosaminidases, 4-methylumbelliferone (4-ΜU) is released and its fluorescence can be used to quantify β-hexosaminidase activity. 4-MU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low (1.97-6.72) and high pH (7.12-10.3), respectively, and an emission maximum ranging from 445 to 455 nm, increasing as pH decreases. 4-Methylumbelliferyl-2-acetamido-2-deoxy-β-D-glucopyranoside has been used to quantify β-hexosaminidase activity in serum or leukocytes from patients with GM2 gangliosidoses such as Tay-Sachs disease, which is characterized by defects in the α subunit of β-hexosaminidase.
| CAS Number | 37067-30-4 | 
| Product Name | 4-Methylumbelliferyl-N-acetyl-beta-D-glucosaminide | 
| IUPAC Name | N-[(3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-(4-methyl-2-oxochromen-7-yl)oxyoxan-3-yl]acetamide | 
| Molecular Formula | C18H21NO8 | 
| Molecular Weight | 379.4 g/mol | 
| InChI | InChI=1S/C18H21NO8/c1-8-5-14(22)26-12-6-10(3-4-11(8)12)25-18-15(19-9(2)21)17(24)16(23)13(7-20)27-18/h3-6,13,15-18,20,23-24H,7H2,1-2H3,(H,19,21)/t13-,15-,16-,17-,18?/m1/s1 | 
| InChI Key | QCTHLCFVVACBSA-JVNHZCFISA-N | 
| SMILES | CC1=CC(=O)OC2=C1C=CC(=C2)OC3C(C(C(C(O3)CO)O)O)NC(=O)C | 
| Synonyms | 4-methylumbelliferyl 2-acetamido-2-deoxy-alpha-D-glucopyranoside, 4-methylumbelliferyl 2-acetamido-2-deoxy-beta-D-glucopyranoside, 4-methylumbelliferyl-N-acetyl-beta-D-glucosaminide, 4-methylumbelliferyl-N-acetyl-beta-glucosamine, 4-methylumbelliferyl-N-acetylglucosaminide, 4-MU-Glc-NAc, 4-MUAG, MUABG | 
| Canonical SMILES | CC1=CC(=O)OC2=C1C=CC(=C2)OC3C(C(C(C(O3)CO)O)O)NC(=O)C | 
| Isomeric SMILES | CC1=CC(=O)OC2=C1C=CC(=C2)O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)CO)O)O)NC(=O)C | 
| CAS No: 37067-30-4 Synonyms: 4-Methylumbelliferyl N-acetyl-b-D-glucosaminide4-MU-GlcNAcGlcNAc-b-4MU MDL No: MFCD00065481 Chemical Formula: C18H21NO8.2H2O Molecular Weight: 415.4 | White crystal powder. In Stock.现货  | 
COA:
Product name: 4-Methylumbelliferyl N-acetyl-β-D-glucosaminide dihydrate
CAS: 37067-30-4 M.F.: C18H21NO8.2H2O M.W.: 415.4
Items  | Standards  | Results  | 
Appearance  | White crystal powder  | Complies  | 
Solubility  | Soluble in DMF, insoluble ether  | Complies  | 
Identification  | IR and HPLC  | Complies  | 
NMR and MS  | Should comply  | Complies  | 
Melting point  | 208℃ ~ 215 °C  | 208℃ ~210℃  | 
Heavy metal  | Max. 20ppm  | Complies  | 
Residue on ignition  | Max. 0.5%  | 0.1%  | 
Water Content (K.F.)  | Max. 2%  | 0.9%  | 
4-Methylumbelliferone  | Max. 0.1%  | Complies  | 
TLC  | Should be one spot  | One spot  | 
Assay by HPLC  | Min. 98%  | 99.2%  | 
References:
1. Leaback DH, Walker PG, Biochem. J. 1961, 78, p151
联系人:李经理
手机:13621067991,13552979007
电话:86+10-61274189
邮箱:chemsynlab@163.com, zhangchao@chemsynlab.com
地址: 北京市大兴区金苑路26号1幢4层411室