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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

(3R)-3-Aminobutan-1-ol | CAS 61477-40-5

A stereodefined 1,3-amino alcohol appearing in published dolutegravir synthesis, with a primary alcohol and an R-configured amino-bearing carbon whose free-base identity must be distinguished from acid-addition salts.

CAS61477-40-5
Molecular formulaC4H11NO
Molecular weight89.14 g/mol

Product overview

The combination of a terminal alcohol and an R-configured amino-bearing carbon makes this four-carbon fragment distinct from other aminobutanols. CAS 61477-40-5 identifies (3R)-3-aminobutan-1-ol as the free base. Both the amino position and the alcohol position matter: a similarly named amino-alcohol isomer does not carry the same arrangement of functional groups. Published dolutegravir chemistry provides a direct route context for the compound. For buyers, its configuration should be assessed separately from the amount of amino alcohol present. Acid-addition salts encountered in route literature also require explicit distinction, because they change the material's composition and the basis used for quantitative charging. Qualification should follow the exact form required by the selected synthetic step.

Chemical identity

Chemical name
(3R)-3-Amino-1-butanol
CAS number
61477-40-5
Molecular formula
C4H11NO
Molecular weight
89.14 g/mol

Application context

(3R)-3-Amino-1-butanol is used in published dolutegravir synthesis. This four-carbon fragment combines a terminal alcohol with an R-configured amino-bearing carbon. Match the functional-group positions and existing stereocentre to the selected step. For the free base, agree a charging assay and a separate R/S assessment. When evaluating an acid-addition salt, identify the counterion and calculate the material quantity on its composition basis.

Chemistry and synthetic role

The OH group is at C1 and the amino-bearing stereocentre at C3. This 1,3 arrangement and R configuration define the fragment independently of whether a related process handles it as a free base or a salt.

Quality review

Confirm 3R independently of assay

A chemical assay does not resolve the opposite enantiomer; agree the required chiral method.

Identify the supplied free base

Do not substitute a tartrate or other acid-addition salt without reviewing composition and charging basis.

Check functional-group positions

Identity data should distinguish 3-aminobutan-1-ol from other aminobutanol isomers.

Preparing a specification

State CAS 61477-40-5, free-base form and 3R configuration. Specify chemical assay, chiral criteria and positional identification; discuss water and assay basis according to the selected condensation or assembly step.

Packaging and storage

Confirm packaging format, net weight and transport arrangements for the selected grade, quantity and destination. Agree storage and handling conditions using the actual supplied material’s SDS and label.

Documentation

Request a free-base specification, COA and SDS. Confirm availability of chiral chromatograms, identity spectra and the water result if included in the agreed process criteria.

Procurement questions

Is the tartrate salt covered by this CAS?

No. The listed identity is the free amino alcohol.

Which amino-alcohol form is used in the published dolutegravir route?

The route uses R-3-amino-1-butanol as the free amino alcohol, retaining the defined amino and alcohol positions of this four-carbon fragment.

Does a high amine assay prove 3R purity?

No. Enantiomeric composition needs a method that distinguishes R and S.

Technical sources
  1. PubChem CID 9898801: properties and CAS synonymsNCBI / NLM / NIH
  2. (R)-3-Amino-1-butanol A2951Tokyo Chemical Industry
  3. WO2015111080A2 — Process for the preparation of dolutegravirWIPO patent publication / Google Patents