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7681-57-4

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Keyword:'7681-57-4'
Showing 1-3 of 3 results for "7681-57-4" within Products
All Photos(16)

Synonym(s): Sodium disulfite, Sodium pyrosulfite, Sodium metabisulfite
Linear Formula: Na2S2O5
CAS No.:
7681-57-4
Molecular Weight:
190.11
EC No.:
231-673-0

  • S9000

    ReagentPlus®, ≥99%

  • 161519

    reagent grade, 97%

  • 13459

    puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E223, dry, 97-100.5%

  • 31448

    puriss. p.a., ACS reagent, reag. Ph. Eur., dry, 98-100.5%

  • PHR1434

    Pharmaceutical Secondary Standard; Certified Reference Material

  • 08982

    analytical standard

  • 799343

    anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99%

  • 1614396

    United States Pharmacopeia (USP) Reference Standard

  • 71932

    tested according to Ph. Eur.

  • 28-4010

    ≥95.0%

All Photos(4)

Synonym(s): Sodium disulfite
Empirical Formula (Hill Notation): Na2O5S2
CAS No.:
7681-57-4
Molecular Weight:
190.11

  • 1.06528

    (sodium metabisulfite) for analysis EMSURE® ACS,Reag. Ph Eur

  • 1.06357

    (sodium metabisulfite), EMPROVE® ESSENTIAL, Ph. Eur., BP, JP, NF, E 223

All Photos(12)

Synonym(s): Sodium hydrogensulfite
Empirical Formula (Hill Notation): NaHSO3
CAS No.:
7631-90-5
Molecular Weight:
104.06
EC No.:
231-548-0

  • 243973

    ACS reagent

  • 799394

    anhydrous, free-flowing, Redi-Dri™, ACS reagent

  • 28-1970

    JIS special grade, 64.0-67.4% SO2 basis

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