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1133388-21-2

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1133388-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1133388-21-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,3,3,8 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1133388-21:
(9*1)+(8*1)+(7*3)+(6*3)+(5*3)+(4*8)+(3*8)+(2*2)+(1*1)=132
132 % 10 = 2
So 1133388-21-2 is a valid CAS Registry Number.

1133388-21-2Downstream Products

1133388-21-2Relevant articles and documents

Stereocontrolled solid-phase synthesis of oligonucleoside H-phosphonates by an oxazaphospholidine approach

Iwamoto, Naoki,Oka, Natsuhisa,Sato, Terutoshi,Wada, Takeshi

supporting information; experimental part, p. 496 - 499 (2009/04/14)

(Chemical Equation Presented) Stereodefined oligonucleoside H-phosphonates were synthesized on a solid support using diastereopure nucleoside 3′-O-oxazaphospholidine monomers. Several stereodefined backbone-modified analogues were obtained with the oligonucleoside H-phosphonates as precursors (see scheme; BPRO = protected nucleobase, DMTr = 4,4′- dimethoxytrityl, Th = thymin-1-yl, TfO- = triflate).

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