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U211100

Sigma-Aldrich

DMT-2′O-Methyl-rU Phosphoramidite

Synonym(s):

5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-uridine, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite], DMT-2′O-Methyl-rU amidite

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About This Item

Empirical Formula (Hill Notation):
C40H49N4O9P
CAS Number:
Molecular Weight:
760.81
MDL number:
UNSPSC Code:
41116105
PubChem Substance ID:
NACRES:
NA.51

biological source

non-animal source (no BSE/TSE risk)

Quality Level

Assay

≥99% (31P-NMR)
≥99.0% (reversed phase HPLC)

form

powder

impurities

≤0.1% single unspecified Impurity (reversed phase HPLC)
≤0.3% mU2 (reversed phase HPLC, Hydrolysate)
≤0.3% mU3 (reversed phase HPLC, DMT-rme)
≤0.3 wt. % water content (Karl Fischer)
≤0.5% P(III) Impurities 100-169ppm (31P-NMR)
≤1.0% mU1 (reversed phase HPLC, DMT-rUme-DMT)
≤3 wt. % residual Solvent content

color

white to off-white

λ

conforms (UV/VIS Identity)

suitability

conforms to structure for H-NMR
conforms to structure for LC-MS

nucleoside profile

base: uridine
base protecting group: none
2' protecting group: methyl
5' protecting group: DMT
deprotection: fast/standard

storage temp.

2-8°C

SMILES string

CO[C@@H]1[C@H](OP(OCCC#N)N(C(C)C)C(C)C)[C@@H](COC(c2ccccc2)(c3ccc(OC)cc3)c4ccc(OC)cc4)O[C@H]1N5C=CC(=O)NC5=O

InChI

1S/C40H49N4O9P/c1-27(2)44(28(3)4)54(51-25-11-23-41)53-36-34(52-38(37(36)49-7)43-24-22-35(45)42-39(43)46)26-50-40(29-12-9-8-10-13-29,30-14-18-32(47-5)19-15-30)31-16-20-33(48-6)21-17-31/h8-10,12-22,24,27-28,34,36-38H,11,25-26H2,1-7H3,(H,42,45,46)/t34-,36-,37-,38-,54?/m1/s1

InChI key

UVUOJOLPNDCIHL-XKZJCBTISA-N

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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