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Detail of "144-98-9"

  • MSDS Download
  • CAS Number:
  • 144-98-9
  • Name:

  • allo-DL-Threonine

  • Molecular Structure:
  • Formula:
  • C4H9NO3
  • Molecular Weight:
  • 119.12
  • Synonyms:
  • allo-Threonine;Allothreonine,DL- (8CI);Butanoic acid, 2-amino-3-allo-hydroxy-;DL-Allothreonine;DL-allo-Threonine;NSC 41828;Threonine, allo-;Allothreonine;
  • EINECS:
  • 205-645-3
  • Density:
  • 1.307 g/cm3
  • Melting Point:
  • 256 °C
  • Boiling Point:
  • 345.803 °C at 760 mmHg
  • Flash Point:
  • 162.936 °C
  • Appearance:
  • white powder
  • Safety:
  • 24/25 Details
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CAS No.144-98-9 allo-DL-Threonine

Supplier:Shijiazhuang JuSha Imp. & Exp. Co., Ltd [ China (Mainland)]

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Tel:86-311-89877166

Address:Room 307, XinCheng Building, No. 351 YouYi Street, Shijiazhuang, China

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CAS No.144-98-9 allo-DL-Threonine

Supplier:Hangzhou Dayangchem Co., Ltd. [ China (Mainland)]

Platinum
SupplierISO 3875Integral
3875

Tel:+86-571-88938639

Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

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CAS No.144-98-9 allo-DL-Threonine

Supplier:Jinan Haohua Industry CO., LTD [ China (Mainland)]

Platinum
Supplier 920Integral
920

Tel:0086-531-58773055

Address:NO.59 Gongye South Road

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CAS No.144-98-9 allo-DL-Threonine

DL-allo-Threonine

Supplier:Jiangsu Alpha Hawk Chemicals Industrial Corp （njfinechem） [ China (Mainland)]

610Integral
610

Tel:86-25-84513908

Address:nanjing taipingsouth road

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CAS No.144-98-9 allo-DL-Threonine

98%

Supplier:Sichuan Unibiochem Co., Ltd. [ China (Mainland)]

620Integral
620

Tel:+86-28-85 09 35 35

Address:No.16, Gaoshengqiao Road, Chengdu 610041, China

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CAS No.144-98-9 allo-DL-Threonine

DL-Allothreonine (contains Threonine)

Supplier:TOKYO CHEMICAL INDUSTRY CO., LTD. [ Japan]

610Integral
610

Tel:+81 3 5640 8872

Address:TOKYO，japan

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CAS No.144-98-9 allo-DL-Threonine

Supplier:Nantong EKO Fashion Co., Ltd. [ China (Mainland)]

600Integral
600

Tel:86 (513) 8699-9982

Address:1F-803, RUN JU XIN YUAN NO.8 YUE CAI ROAD, PING CHAO TOWN, TONGZHOU CITY, JIANGSU CHINA

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CAS No.144-98-9 allo-DL-Threonine

Supplier:shanghai help-you business company [ China (Mainland)]

600Integral
600

Tel:021-68937862

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Reference

Separation of a-amino-b-hydroxybutyric acids
Separation of a-amino-b-hydroxybutyric acids. (Mitsui Toatsu Chemicals, Inc.Several substances are used for example 144-98-9 and 80-68-2 which are their cas registry numbers., Japan). Jpn. Kokai Tokkyo Koho JP 58177947 A2 18 Oct 1983 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C07C101-30; B01J031-08; C07C099-12. APPLICATION: JP 82-59719 12 Apr 1982. DOCUMENT TYPE: Patent CA Section: 34 (Amino Acids, Peptides, and Proteins) DL-Threonine (I) and DL-allothreonine (II) were sepd. using a polyamine-type anion exchange resin. Thus, a reaction mixt. contg. 70% I and 30% II (prepd. from glycine and MeCHO) was eluted through a 150 cm column contg. H+-type chelate resin TP-207 with deionized H2O to give first 0.85 g 98% pure II and then 0.2 g 95% pure I. .
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