MATERIAL PROFILE / Individual substance
CAS: 584-03-2
Function: Solvent and resin intermediate; research and formulation ingredient
Compare this material →This material’s published information has not yet been verified by a human reviewer.
Human verification concerns the stated information and scope. It is separate from an EcoSafe score, certification or safety approval.1,2-Butanediol is a diol with adjacent hydroxyl groups. Supplier-listed applications include printing inks, coatings, polyester and urethane resins, plasticizers, cosmetic raw materials and pharmaceutical materials. The archived Wako Special Grade is a research reagent; its specifications do not characterize every supplier grade.
Chemistry: Vicinal diol / polyol · C4H10O2
Listed supplier: Multiple suppliers · individual chemical
Chemical identity only; purity, grade and supplier composition require separate documentation.
Identity snapshot: 2026-11-02 UTC.
CAS identity reference ↗Provisional · assigned by Dave · November 2, 2026
This is an owner-assigned category pending a documented assessment. No numerical points, independent certification or human-verified evidence badge have been awarded. Neutral does not establish safe use, renewable origin or low lifecycle impact.
Ink solvents, coating ingredients and resin intermediates are described in supplier portfolios. Kowa lists polyester resins and plasticizer production; Shinko also lists urethane resins, cosmetic raw materials and pharmaceutical materials. Confirm the exact grade and application requirements.
Kowa applications ↗ · Shinko applications ↗
COSMILE Europe lists humectant, skin-conditioning, solvent and viscosity-control functions. Cosmetic ingredient functions ↗
Food or beverage authorization and pharmaceutical excipient or injectable suitability have not been established here. The supplied Wako SDS recommends research use only. A cosmetic ingredient listing is not a blanket product approval.
The supplied market summaries disagree substantially; comparable scope and country production volumes have not been established. No market-size estimate or top-ten production ranking is adopted. BASF and Eastman are not added as confirmed makers without an exact-substance supplier reference.
1,2-Butanediol (584-03-2) is distinct from 1,3-, 1,4- and 2,3-butanediol. EPA lists 26171-83-5 as a former identifier; current CAS 584-03-2 remains the primary search identity.
EPA identity record ↗FUJIFILM Wako Special Grade · (±)-1,2-Butanediol · codes 028-08582 and 022-08585. The supplier lists 25 mL and 500 mL packages. Research-use grade; current availability requires supplier confirmation.
The specification was revised September 11, 2014. Its supplied header displays November 3, 2026, one day after this review; that header is recorded separately rather than treated as a newer specification revision. This is a specification, not a batch certificate of analysis.
The Wako SDS, revision 4.04 dated February 4, 2026, reports eye irritation Category 2B and H320 under Japan JIS classification. Use suitable eye and skin protection and ventilation as directed by the full SDS.
Keep tightly closed, protected from light, in a well-ventilated place at room temperature, preferably cool. Avoid strong oxidizers, ignition sources and temperature extremes. The SDS reports transport as not regulated under ADR/RID, IMDG and IATA; this is a transport classification for the named product, not an overall safety rating.
Complete SDS: handling, first aid, disposal and regional information ↗Renewable production is a research possibility. A 2024 study demonstrated engineered E. coli making 1,2-butanediol from glucose at 0.15 g/L. It establishes a laboratory route, not commercial renewable supply, certification or a lifecycle advantage for the grades listed here.
ACS Synthetic Biology research, 2024 ↗The Wako SDS reports 96% decomposition measured by BOD, but gives no test duration or method in that entry. This alone does not establish ready biodegradability or environmental safety. Water solubility and a high boiling point also do not establish a greener solvent; recovery energy, exposure and process design matter.
No verified bio-based, vegan, natural, food-safe or eco-certified claim is assigned to these grades. Certifications for 2,3-butanediol do not transfer to 1,2-butanediol.
16 of 16 defined fields are recorded with a source. This measures structured information currently on this site, not the completeness of every linked PDF. Missing fields remain in the denominator.
Coverage is separate from scientific accuracy, human verification and EcoSafe assessment. Molecular fields may not apply to a grade or family; they are not filled from another material to increase its score.
| Core field | Recorded information |
|---|---|
| Chemical name | 1,2-Butanediol Source ↗ |
| CAS number | 584-03-2 Source ↗ |
| Synonyms | Butane-1,2-diol; 1,2-butylene glycol; 1,2-dihydroxybutane Source ↗ |
| Molecular formula | C4H10O2 Source ↗ |
| Molecular weight | 90.12 Source ↗ |
| IUPAC name | butane-1,2-diol Source ↗ |
| PubChem CID | 11429 Source ↗ |
| Identity sources | https://pubchem.ncbi.nlm.nih.gov/compound/11429 Source ↗ Source reference recorded for this record's scope; source freshness is a separate review. |
| Uses | Ink solvent; polyester resin and plasticizer intermediate. Additional supplier-listed markets: coatings, cosmetic and pharmaceutical raw materials. Source ↗ Wako research grade is not qualified for those finished-product uses. |
| Hazards | Warning; H320 causes eye irritation; eye irritation Category 2B (Japan JIS supplier classification) Source ↗ See the full grade-specific SDS; no universal safety determination. |
| Appearance | Colorless to slightly yellow, clear liquid Source ↗ |
| Density | 1.000–1.006 g/mL Source ↗ 20 °C · Method not stated · Specification |
| Melting point | −50 °C Source ↗ Melting/freezing point; pressure not stated · Method not stated · Substance reference |
| Boiling point | 194 °C Source ↗ Pressure not stated in SDS · Method not stated · Substance reference |
| Solubility | Very soluble in water; soluble in ethanol and acetone Source ↗ Temperature not stated · Qualitative SDS description · Substance reference |
| SDS/TDS | 1,2-Butanediol — Wako Special Grade SDS Source ↗ Complete six-page user-supplied SDS; CAS 584-03-2, codes 028-08582 / 022-08585. Research use only. Grade-specific reference. |
FUJIFILM Wako (±)-1,2-Butanediol, Wako Special Grade; CAS 584-03-2. Supplier specifications and SDS reference values are distinguished below. Test methods and pressure are retained as unstated where absent. These are not lot-specific certificate-of-analysis results.
| Property | Value | Conditions / method |
|---|---|---|
| Refractive index | 1.435–1.441 Specification | 20 °C; wavelength not stated in supplied specification Method not stated Source ↗ |
| Specific optical rotation | −0.2 to +0.2 ° Specification | [α]D20; neat Polarimetry; further method not stated Source ↗ |
| Solubility | Very soluble in water; soluble in ethanol and acetone Substance reference | Temperature not stated Qualitative SDS description Source ↗ |
| Boiling point | 194 °C Substance reference | Pressure not stated in SDS Method not stated Source ↗ |
| Density | 1.000–1.006 g/mL Specification | 20 °C Method not stated Source ↗ |
| Purity / assay | ≥98.0 % Specification | Assay; basis not further specified Capillary gas chromatography Source ↗ |
| Water content | ≤0.5 % Specification | As supplied; basis not further specified Method not stated Source ↗ |
| Flash point | 93 °C Substance reference | Open/closed cup not stated Method not stated Source ↗ |
| Melting / softening behavior | −50 °C Substance reference | Melting/freezing point; pressure not stated Method not stated Source ↗ |
Japan has an explicit supplier-stated origin; China has a manufacturer/factory claim requiring confirmation. Comparable country output is not available, so no top-ten ranking or market shares are assigned.
Archived copies are dated references. Confirm the latest document for your supplier, grade and region.
SDS · FUJIFILM Wako
Revision 4.04 · issued February 4, 2026 · Japan JIS Z 7253:2019 · English
Complete six-page user-supplied SDS; CAS 584-03-2, codes 028-08582 / 022-08585. Research use only. Grade-specific reference.
Open archived copy ↗ · Download · Supplier source ↗TDS · FUJIFILM Wako
Revised September 11, 2014; separate header date November 3, 2026 · English · grade code 02-0858
One-page supplier specification (technical document), not a lot-specific CoA. Header date is later than the November 2 review date and is not treated as the revision date.
Open archived copy ↗ · Download · Supplier source ↗Identity data and category placement do not establish safety, suitability or environmental performance. Obtain current grade-specific documentation.
Plastics & Rubber Polymers
Polymer Additives & Processing Aids
Industrial Chemicals
Solvents & Carriers · Organic Intermediates
Coatings
Polyester Coatings · Polyurethane Coatings
Beauty & Personal Care
Humectants & Moisturizers
Library source check: November 2, 2026. Sources may require supplier access.